Possible Bug: Cellular modem sample with nRF9151 running SLM

Hello,

I posted this in Zephyr's repo at first, but was told to post it here since I am using NCS.

I am running cellular modem sample on nRF54L15 and have it interfaced with nRF9151 which is running SLM application.

Everything is working except cellular_get_signal(), I am not using 2G or 3G so it is expected that CELLULAR_SIGNAL_RSSI might not be available, however the calls to that function with CELLULAR_SIGNAL_RSRQ and CELLULAR_SIGNAL_RSRP fail also.

They return either -16 (EBUSY) or -22(EINVAL) error codes (it is not consistent).

Calls to cellular_get_modem_info() are successful and they return correct information.

These are the debug logs including modem_chat, interestingly looking at the logs, I actually receive the correct values for RSRQ and RSRP -> 23 61, however the get_signal_cesq_chat_script times out.

[00:01:01.773,996] <dbg> modem_chat: modem_chat_script_next: sending: AT+CESQ
[00:01:01.774,038] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:7
[00:01:01.774,052] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                     41 54 2b 43 45 53 51                             |AT+CESQ          
[00:01:01.774,089] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
[00:01:01.774,102] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                     0d 0a                                            |..               
[00:01:01.814,943] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:31
[00:01:01.814,959] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                     0d 0a 2b 43 45 53 51 3a  20 39 39 2c 39 39 2c 32 |..+CESQ:  99,99,2
                                     35 35 2c 32 35 35 2c 32  33 2c 36 31 0d 0a 0d    |55,255,2 3,61...
[00:01:01.815,049] <dbg> modem_chat: modem_chat_log_received_command: +CESQ:  99 99 255 255 23 61
[00:01:01.815,080] <dbg> modem_chat: modem_chat_script_next: get_signal_cesq_chat_script: step: 1
[00:01:03.319,140] <dbg> modem_cellular: modem_cellular_log_event: event timeout
[00:01:03.774,060] <wrn> modem_chat: get_signal_cesq_chat_script: timed out

P.S. I only added couple of new lines in print_cellular_info() function to try to fetch RSRP and RSRQ

    rc = cellular_get_signal(modem, CELLULAR_SIGNAL_RSSI, &rssi);
    if (!rc) {
        printk("RSSI %d\n", rssi);
    }

    rc = cellular_get_signal(modem, CELLULAR_SIGNAL_RSRP, &rsrp);
    if (!rc) {
        printk("RSRP %d\n", rsrp);
    }

    rc = cellular_get_signal(modem, CELLULAR_SIGNAL_RSRQ, &rsrq);
    if (!rc) {
        printk("RSRQ %d\n", rsrp);
    }

ENV:
Device: nRF54L15 running cellular modem and Thingy91x running SLM application
OS: Ubuntu 24.04.2 LTS
Toolchain: Zephyr 0.17.0 SDK / nordic vscode extension
Commit SHA or Version used: 77f865b, v4.0.99-ncs1-1

  • Hi,

    I am running cellular modem sample on nRF54L15 and have it interfaced with nRF9151 which is running SLM application.

    Can you provide more information about your board and interface to nrf9151?

    I posted this in Zephyr's repo at first, but was told to post it here since I am using NCS.

    It is not clear if you are using plain Zephyr or NCS. I see from your link that you use Zephyr sample. Can you confirm that you use NCS? In case you use NCS, which NCS and Toolchain version do you use?

    These are the debug logs including modem_chat

    Can you show complete log?

    P.S. I only added couple of new lines in print_cellular_info() function to try to fetch RSRP and RSRQ

    Is everything working as expected if you omit lines shown below?

        rc = cellular_get_signal(modem, CELLULAR_SIGNAL_RSRP, &rsrp);
    	if (!rc) {
    		printk("RSRP %d\n", rsrp);
    	}
    
    	rc = cellular_get_signal(modem, CELLULAR_SIGNAL_RSRQ, &rsrq);
    	if (!rc) {
    		printk("RSRQ %d\n", rsrq);
    	}

    Best regards,
    Dejan

  • Hello,

    Can you provide more information about your board and interface to nrf9151?

    The board is custom board that is using nRF54L15, I am just using overlay for nrf54l15dk:

    / {
        aliases {
            modem = &modem;
        };
    };
    
    &uart22 {
        compatible = "nordic,nrf-uarte";
        status = "okay";
        current-speed = <460800>;
        hw-flow-control;
        pinctrl-0 = <&uart22_default>;
        pinctrl-1 = <&uart22_sleep>;
        pinctrl-names = "default", "sleep";
        modem: modem {
            compatible = "nordic,nrf91-slm";
            status = "okay";
            mdm-power-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
        };
    };
    
    &dppic00 {
        status = "okay";
    };
    
    &gpio1 {
        status = "okay";
    };
    
    &gpio0 {
        status = "okay";
    };
    
    &gpio2 {
        status = "okay";
    };
    
    &gpiote20 {
        status = "okay";
    };
    
    &gpiote30 {
        status = "okay";
    };
    
    
    &pinctrl {
        /omit-if-no-ref/ uart22_default: uart22_default {
            group1 {
                psels = <NRF_PSEL(UART_TX, 1, 13)>,
                        <NRF_PSEL(UART_RTS, 1, 11)>;
            };
            group2 {
                psels = <NRF_PSEL(UART_RX, 1, 14)>,
                        <NRF_PSEL(UART_CTS, 1, 12)>;
                bias-pull-up;
            };
        };
    
        /omit-if-no-ref/ uart22_sleep: uart22_sleep {
            group1 {
                psels = <NRF_PSEL(UART_TX, 1, 13)>,
                        <NRF_PSEL(UART_RX, 1, 14)>,
                        <NRF_PSEL(UART_RTS, 1, 11)>,
                        <NRF_PSEL(UART_CTS, 1, 12)>;
                low-power-enable;
            };
        };
    };

    It is connected with UART over the Thingy91x debug extension board.

    It is not clear if you are using plain Zephyr or NCS. I see from your link that you use Zephyr sample. Can you confirm that you use NCS? In case you use NCS, which NCS and Toolchain version do you use?

    I linked the zephyr's sample because I posted on Zephyr first and the cellular sample is same on both Zephyr repo and the forked repo of sdk-zephyr. I am using for SDK: NCS v3.0.1 but for toolchain I am not using NCS v3.0.1 I am using zephyr 0.17.0.

    Can you show complete log?

    *** Booting nRF Connect SDK v3.0.1-9eb5615da66b ***
    *** Using Zephyr OS v4.0.99-77f865b8f8d0 ***
    Powering on modem
    [00:00:13.860,835] <dbg> modem_cellular: modem_cellular_log_event: event resume
    [00:00:13.861,020] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from idle to power pulse
    Bring up network interface
    Waiting for L4 connected
    [00:00:13.961,087] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:13.971,180] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from power pulse to await power on
    [00:00:15.971,228] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:15.981,332] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from await power on to run init script
    [00:00:15.994,933] <dbg> modem_cellular: modem_cellular_log_event: event bus opened
    [00:00:16.005,287] <dbg> modem_chat: modem_chat_script_start: running script: nordic_nrf91_slm_init_chat_script
    [00:00:16.018,081] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 0
    [00:00:16.030,168] <dbg> modem_chat: modem_chat_script_next: sending: AT
    [00:00:16.050,961] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.060,333] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 1
    [00:00:16.072,423] <dbg> modem_chat: modem_chat_script_next: sending: AT+CMEE=1
    [00:00:16.093,895] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.103,266] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 2
    [00:00:16.115,353] <dbg> modem_chat: modem_chat_script_next: sending: AT+CEREG=1
    [00:00:16.136,918] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.146,287] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 3
    [00:00:16.158,375] <dbg> modem_chat: modem_chat_script_next: sending: AT+CEREG?
    [00:00:16.180,265] <dbg> modem_chat: modem_chat_log_received_command: +CEREG:  1 4
    [00:00:16.190,537] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.199,909] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 4
    [00:00:16.211,997] <dbg> modem_chat: modem_chat_script_next: sending: AT+CGSN
    [00:00:16.221,809] <dbg> modem_cellular: modem_cellular_log_event: event deregistered
    [00:00:16.244,351] <dbg> modem_chat: modem_chat_log_received_command:  359404230396419
    [00:00:16.254,959] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 5
    [00:00:16.267,064] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.276,425] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 6
    [00:00:16.288,508] <dbg> modem_chat: modem_chat_script_next: sending: AT+CGMM
    [00:00:16.310,309] <dbg> modem_chat: modem_chat_log_received_command:  nRF9151-LACA
    [00:00:16.320,652] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 7
    [00:00:16.332,753] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.342,116] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 8
    [00:00:16.354,202] <dbg> modem_chat: modem_chat_script_next: sending: AT+CGMI
    [00:00:16.376,204] <dbg> modem_chat: modem_chat_log_received_command:  Nordic Semiconductor ASA
    [00:00:16.387,599] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 9
    [00:00:16.399,721] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.409,092] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 10
    [00:00:16.421,265] <dbg> modem_chat: modem_chat_script_next: sending: AT+CGMR
    [00:00:16.443,094] <dbg> modem_chat: modem_chat_log_received_command:  mfw_nrf91x1_2.0.2
    [00:00:16.453,871] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 11
    [00:00:16.466,056] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.475,419] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_init_chat_script: step: 12
    [00:00:16.487,592] <dbg> modem_chat: modem_chat_script_next: sending: AT#XCMUX=1
    [00:00:16.502,905] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:16.512,275] <dbg> modem_chat: modem_chat_script_stop: nordic_nrf91_slm_init_chat_script: complete
    [00:00:16.524,477] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:16.535,357] <dbg> modem_cellular: modem_cellular_log_event: event bus closed
    [00:00:16.545,704] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from run init script to connect cmux
    [00:00:16.645,756] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:16.655,859] <dbg> modem_cellular: modem_cellular_log_event: event bus opened
    [00:00:16.666,229] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:0 cr:1 pf:1 type:SABM dlen:0
    [00:00:16.677,444] <dbg> modem_cmux: modem_cmux_log_frame: data:
    [00:00:16.719,300] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:0 cr:1 pf:1 type:UA dlen:0
    [00:00:16.730,521] <dbg> modem_cmux: modem_cmux_log_frame: data:
    [00:00:16.739,210] <dbg> modem_cellular: modem_cellular_log_event: event cmux connected
    [00:00:16.749,910] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from connect cmux to open dlci1
    [00:00:16.762,900] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:1 type:SABM dlen:0
    [00:00:16.774,110] <dbg> modem_cmux: modem_cmux_log_frame: data:
    [00:00:16.815,982] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:1 type:UA dlen:0
    [00:00:16.827,206] <dbg> modem_cmux: modem_cmux_log_frame: data:
    [00:00:16.835,894] <dbg> modem_cellular: modem_cellular_log_event: event dlci1 opened
    [00:00:16.846,419] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from open dlci1 to open dlci2
    [00:00:16.859,234] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:1 type:SABM dlen:0
    [00:00:16.870,447] <dbg> modem_cmux: modem_cmux_log_frame: data:
    [00:00:16.912,329] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:1 type:UA dlen:0
    [00:00:16.923,551] <dbg> modem_cmux: modem_cmux_log_frame: data:
    [00:00:16.932,243] <dbg> modem_cellular: modem_cellular_log_event: event dlci2 opened
    [00:00:16.942,762] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from open dlci2 to run dial script
    [00:00:17.042,813] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:17.052,902] <dbg> modem_chat: modem_chat_script_start: running script: nordic_nrf91_slm_dial_chat_script
    [00:00:17.065,699] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_dial_chat_script: step: 0
    [00:00:17.077,785] <dbg> modem_chat: modem_chat_script_next: sending: AT+CFUN=4
    [00:00:17.087,801] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:9
    [00:00:17.098,933] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 46 55 4e 3d  34                      |AT+CFUN= 4       
    [00:00:17.117,079] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:2
    [00:00:17.128,205] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:17.186,767] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:6
    [00:00:17.198,073] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 4f 4b 0d 0a                                |..OK..           
    [00:00:17.216,221] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:17.225,587] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_dial_chat_script: step: 1
    [00:00:17.237,677] <dbg> modem_chat: modem_chat_script_next: sending: AT+CFUN=1
    [00:00:17.247,689] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:9
    [00:00:17.258,818] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 46 55 4e 3d  31                      |AT+CFUN= 1       
    [00:00:17.276,963] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:2
    [00:00:17.288,090] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:17.386,691] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:6
    [00:00:17.397,997] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 4f 4b 0d 0a                                |..OK..           
    [00:00:17.416,149] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:17.425,525] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_dial_chat_script: step: 2
    [00:00:17.437,613] <dbg> modem_chat: modem_chat_script_next: sending: AT#XCMUX=2
    [00:00:17.447,713] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:10
    [00:00:17.458,925] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 23 58 43 4d 55 58  3d 32                   |AT#XCMUX =2      
    [00:00:17.477,070] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:2
    [00:00:17.488,196] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:17.540,083] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:6
    [00:00:17.551,392] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 4f 4b 0d 0a                                |..OK..           
    [00:00:17.569,542] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:17.578,916] <dbg> modem_chat: modem_chat_script_stop: nordic_nrf91_slm_dial_chat_script: complete
    [00:00:17.591,128] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:17.601,850] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from run dial script to await registered
    [00:00:19.062,963] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:19.074,267] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:19.092,395] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:11
    [00:00:19.103,785] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         2b 43 45 52 45 47 3a 20  32 0d 0a                |+CEREG:  2..     
    [00:00:19.121,959] <dbg> modem_chat: modem_chat_log_received_command: +CEREG:  2
    [00:00:19.132,056] <dbg> modem_cellular: modem_cellular_log_event: event deregistered
    [00:00:19.601,917] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:19.612,004] <dbg> modem_chat: modem_chat_script_start: running script: nordic_nrf91_slm_periodic_chat_script
    [00:00:19.625,147] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_periodic_chat_script: step: 0
    [00:00:19.637,592] <dbg> modem_chat: modem_chat_script_next: sending: AT+CEREG?
    [00:00:19.647,607] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:9
    [00:00:19.658,736] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 45 52 45 47  3f                      |AT+CEREG ?       
    [00:00:19.676,874] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:19.687,996] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:19.740,670] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:21
    [00:00:19.752,064] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 45 52 45 47  3a 20 31 2c 32 0d 0a 0d |..+CEREG : 1,2...
                                         0a 4f 4b 0d 0a                                   |.OK..            
    [00:00:19.779,705] <dbg> modem_chat: modem_chat_log_received_command: +CEREG:  1 2
    [00:00:19.789,970] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:19.799,340] <dbg> modem_chat: modem_chat_script_stop: nordic_nrf91_slm_periodic_chat_script: complete
    [00:00:19.811,908] <dbg> modem_cellular: modem_cellular_log_event: event deregistered
    [00:00:19.822,413] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:21.833,147] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:21.843,229] <dbg> modem_chat: modem_chat_script_start: running script: nordic_nrf91_slm_periodic_chat_script
    [00:00:21.856,363] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_periodic_chat_script: step: 0
    [00:00:21.868,799] <dbg> modem_chat: modem_chat_script_next: sending: AT+CEREG?
    [00:00:21.878,803] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:9
    [00:00:21.889,929] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 45 52 45 47  3f                      |AT+CEREG ?       
    [00:00:21.908,065] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:21.919,184] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:21.972,163] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:21
    [00:00:21.983,562] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 45 52 45 47  3a 20 31 2c 32 0d 0a 0d |..+CEREG : 1,2...
                                         0a 4f 4b 0d 0a                                   |.OK..            
    [00:00:22.011,202] <dbg> modem_chat: modem_chat_log_received_command: +CEREG:  1 2
    [00:00:22.021,466] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:22.030,824] <dbg> modem_chat: modem_chat_script_stop: nordic_nrf91_slm_periodic_chat_script: complete
    [00:00:22.043,388] <dbg> modem_cellular: modem_cellular_log_event: event deregistered
    [00:00:22.053,891] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:22.146,999] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:22.158,301] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:22.176,445] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:17
    [00:00:22.187,833] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         2b 43 4e 45 43 5f 45 53  4d 3a 20 35 30 2c 30 0d |+CNEC_ES M: 50,0.
                                         0a                                               |.                
    [00:00:22.215,465] <dbg> modem_chat: modem_chat_on_unknown_command_received: +CNEC_ESM: 50,0
    [00:00:22.226,622] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:24
    [00:00:22.238,009] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 21  7d 21 7d 20 7d 28 7d 21 |~.}#.!}! }!} }(}!
                                         7d 24 7d 25 4e ca 76 7e                          |}$}%N.v~         
    [00:00:22.265,613] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:14
    [00:00:22.276,996] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 23 58 50 50 50 3a  20 31 2c 30 0d 0a       |..#XPPP:  1,0..  
    [00:00:22.295,163] <dbg> modem_chat: modem_chat_on_unknown_command_received: #XPPP: 1,0
    [00:00:22.305,880] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:22.316,688] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 12)
    [00:00:24.064,637] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:24.074,726] <dbg> modem_chat: modem_chat_script_start: running script: nordic_nrf91_slm_periodic_chat_script
    [00:00:24.087,864] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_periodic_chat_script: step: 0
    [00:00:24.100,307] <dbg> modem_chat: modem_chat_script_next: sending: AT+CEREG?
    [00:00:24.110,315] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:9
    [00:00:24.121,446] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 45 52 45 47  3f                      |AT+CEREG ?       
    [00:00:24.139,591] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:24.150,716] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:24.203,280] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:21
    [00:00:24.214,676] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 45 52 45 47  3a 20 31 2c 35 0d 0a 0d |..+CEREG : 1,5...
                                         0a 4f 4b 0d 0a                                   |.OK..            
    [00:00:24.242,319] <dbg> modem_chat: modem_chat_log_received_command: +CEREG:  1 5
    [00:00:24.252,586] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:24.261,956] <dbg> modem_chat: modem_chat_script_stop: nordic_nrf91_slm_periodic_chat_script: complete
    [00:00:24.274,523] <dbg> modem_cellular: modem_cellular_log_event: event registered
    [00:00:24.284,896] <dbg> modem_cellular: modem_cellular_log_state_changed: switch from await registered to carrier on
    [00:00:24.298,214] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:24.309,108] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:24
    [00:00:24.320,334] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 21  7d 21 7d 20 7d 28 7d 21 |~.}#.!}! }!} }(}!
                                         7d 24 7d 25 dc 51 c1 7e                          |}$}%.Q.~         
    [00:00:24.384,738] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:24
    [00:00:24.396,137] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 24  7d 21 7d 20 7d 28 7d 21 |~.}#.!}$ }!} }(}!
                                         7d 24 7d 25 dc 30 56 7e                          |}$}%.0V~         
    [00:00:24.423,772] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:24.434,589] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 12)
    [00:00:24.446,260] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:17
    [00:00:24.457,485] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 21  7d 22 7d 20 7d 24 b5 5a |~.}#.!}! }"} }$.Z
                                         7e                                               |~                
    [00:00:24.521,137] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:17
    [00:00:24.532,541] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 22  7d 22 7d 20 7d 24 78 7f |~.}#.!}" }"} }$x.
                                         7e                                               |~                
    [00:00:24.560,161] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:24.570,962] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 8)
    [00:00:26.284,957] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:26.295,037] <dbg> modem_chat: modem_chat_script_start: running script: nordic_nrf91_slm_periodic_chat_script
    [00:00:26.308,176] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_periodic_chat_script: step: 0
    [00:00:26.320,615] <dbg> modem_chat: modem_chat_script_next: sending: AT+CEREG?
    [00:00:26.330,615] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:9
    [00:00:26.341,741] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 45 52 45 47  3f                      |AT+CEREG ?       
    [00:00:26.359,886] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:26.371,011] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:26.429,646] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:21
    [00:00:26.441,045] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 45 52 45 47  3a 20 31 2c 35 0d 0a 0d |..+CEREG : 1,5...
                                         0a 4f 4b 0d 0a                                   |.OK..            
    [00:00:26.468,686] <dbg> modem_chat: modem_chat_log_received_command: +CEREG:  1 5
    [00:00:26.478,950] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:26.488,317] <dbg> modem_chat: modem_chat_script_stop: nordic_nrf91_slm_periodic_chat_script: complete
    [00:00:26.500,870] <dbg> modem_cellular: modem_cellular_log_event: event registered
    [00:00:26.511,198] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:27.158,819] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:24
    [00:00:27.170,219] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 21  7d 21 7d 20 7d 28 7d 21 |~.}#.!}! }!} }(}!
                                         7d 24 7d 25 4e ca 76 7e                          |}$}%N.v~         
    [00:00:27.197,866] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:27.208,689] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 12)
    [00:00:27.220,382] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:24
    [00:00:27.231,611] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 24  7d 21 7d 20 7d 28 7d 21 |~.}#.!}$ }!} }(}!
                                         7d 24 7d 25 4e ab e1 7e                          |}$}%N..~         
    [00:00:27.295,477] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:17
    [00:00:27.306,874] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 21  7d 22 7d 20 7d 24 b5 5a |~.}#.!}! }"} }$.Z
                                         7e                                               |~                
    [00:00:27.334,494] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:27.345,293] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 8)
    [00:00:27.357,022] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:17
    [00:00:27.368,252] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 22  7d 22 7d 20 7d 24 78 7f |~.}#.!}" }"} }$x.
                                         7e                                               |~                
    [00:00:27.396,021] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:51
    [00:00:27.407,248] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 21 7d 20 7d 36 7d 23 |~.}#.!}! }!} }6}#
                                         7d 26 7d 20 7d 20 7d 20  7d 20 81 7d 26 7d 20 7d |}&} } }  } .}&} }
                                         20 7d 20 7d 20 83 7d 26  7d 20 7d 20 7d 20 7d 20 | } } .}& } } } }
                                         6e db 7e                                         |n.~              
    [00:00:27.453,984] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:49
    [00:00:27.465,205] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 7d 20 7d 20 83 7d  26 7d 20 7d 20 7d 20 7d |} } } .} &} } } }
                                         20 6e db 7e 7e ff 7d 23  80 57 7d 21 7d 21 7d 20 | n.~~.}# .W}!}!}
                                         7d 2e 7d 21 7d 2a 33 35  39 ff fe 34 30 34 f6 fe |}.}!}*35 9..404..
                                         7e                                               |~                
    [00:00:27.511,809] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:27.523,205] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 21 7d 20 7d 36 7d 23 |~.}#.!}! }!} }6}#
                                         7d 26 64 75 e0 27 81 7d  26 7d 20 7d 20 7d 20    |}&du.'.} &} } }  
    [00:00:27.550,841] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:16
    [00:00:27.562,234] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 83 7d 26 7d 20 7d  20 7d 20 7d 20 fe f7 7e |} .}&} }  } } ..~
    [00:00:27.580,458] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:27.591,325] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 26)
    [00:00:27.603,061] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:57
    [00:00:27.614,291] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 2e 7d 21 7d 2a 33  35 39 ff fe 34 30 34 f6 | }.}!}*3 59..404.
                                         fe 7e 7e ff 7d 23 80 21  7d 24 7d 21 7d 20 7d 30 |.~~.}#.! }$}!} }0
                                         81 7d 26 7d 20 7d 20 7d  20 7d 20 83 7d 26 7d 20 |.}&} } }  } .}&}
                                         7d 20 7d 20 7d 20 5f c7  7e                      |} } } _. ~       
    [00:00:27.660,937] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:26
    [00:00:27.672,158] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         30 81 7d 26 7d 20 7d 20  7d 20 7d 20 83 7d 26 7d |0.}&} }  } } .}&}
                                         20 7d 20 7d 20 7d 20 5f  c7 7e                   | } } } _ .~      
    [00:00:27.699,868] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:27.711,272] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 23  7d 21 7d 20 7d 36 7d 23 |~.}#.!}# }!} }6}#
                                         7d 26 64 75 e0 27 81 7d  26 7d 20 7d 20 7d 20    |}&du.'.} &} } }  
    [00:00:27.738,914] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:16
    [00:00:27.750,311] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 83 7d 26 7d 20 7d  20 7d 20 7d 20 55 ad 7e |} .}&} }  } } U.~
    [00:00:27.768,478] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:27.779,866] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 28  7d 21 7d 20 7d 32 80 57 |~.}#.!}( }!} }2.W
                                         7d 21 7d 21 7d 20 7d 2e  7d 21 7d 2a 33 35 39    |}!}!} }. }!}*359
    [00:00:27.807,496] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:6
    [00:00:27.818,802] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         ff fe 34 9c fc 7e                                |..4..~           
    [00:00:27.836,978] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:27.847,843] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 26)
    [00:00:27.859,343] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:27.870,192] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 22)
    [00:00:27.881,919] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:26
    [00:00:27.893,324] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 22 7d 20 7d 2a 7d 23 |~.}#.!}! }"} }*}#
                                         7d 26 64 75 e0 27 5d 7d  30 7e                   |}&du.']} 0~      
    [00:00:27.920,988] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:27.931,817] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 14)
    [00:00:27.943,553] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:47
    [00:00:27.954,785] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 22 7d 20 7d 36 7d 23 |~.}#.!}! }"} }6}#
                                         7d 26 64 75 e0 27 81 7d  26 7d 20 7d 20 7d 20 7d |}&du.'.} &} } } }
                                         20 83 7d 26 7d 20 7d 20  7d 20 7d 20 4a ae 7e    | .}&} }  } } J.~
    [00:00:27.992,065] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:59
    [00:00:28.003,288] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 83 7d 26 7d 20 7d  20 7d 20 7d 20 4a ae 7e |} .}&} }  } } J.~
                                         7e ff 7d 23 c0 21 7d 27  7d 21 7d 20 7d 34 c0 21 |~.}#.!}' }!} }4.!
                                         7d 28 7d 21 7d 20 7d 32  80 57 7d 21 7d 21 7d 20 |}(}!} }2 .W}!}!}
                                         7d 2e 7d 21 7d 2a 33 35  93 66 7e                |}.}!}*35 .f~     
    [00:00:28.050,002] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:53
    [00:00:28.061,230] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         21 7d 28 7d 21 7d 20 7d  32 80 57 7d 21 7d 21 7d |!}(}!} } 2.W}!}!}
                                         20 7d 2e 7d 21 7d 2a 33  35 93 66 7e 7e ff 7d 23 | }.}!}*3 5.f~~.}#
                                         80 21 7d 22 7d 22 7d 20  7d 2a 7d 23 7d 26 64 75 |.!}"}"}  }*}#}&du
                                         e0 27 34 64 7e                                   |.'4d~            
    [00:00:28.107,878] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:22
    [00:00:28.119,099] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         23 80 21 7d 22 7d 22 7d  20 7d 2a 7d 23 7d 26 64 |#.!}"}"}  }*}#}&d
                                         75 e0 27 34 64 7e                                |u.'4d~           
    [00:00:28.146,741] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:28.158,139] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 23  7d 22 7d 20 7d 30 81 7d |~.}#.!}# }"} }0.}
                                         26 7d 20 7d 20 7d 20 7d  20 83 7d 26 7d 20 7d    |&} } } }  .}&} }
    [00:00:28.185,778] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:8
    [00:00:28.197,087] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 20 7d 20 62 ad 7e                          | } } b.~         
    [00:00:28.215,296] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:28.226,146] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 20)
    [00:00:28.237,918] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:47
    [00:00:28.249,140] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 23 7d 20 7d 36 7d 23 |~.}#.!}! }#} }6}#
                                         7d 26 64 75 e0 27 81 7d  26 7d 20 7d 20 7d 20 7d |}&du.'.} &} } } }
                                         20 83 7d 26 7d 20 7d 20  7d 20 7d 20 26 99 7e    | .}&} }  } } &.~
    [00:00:28.286,310] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:16
    [00:00:28.297,528] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 83 7d 26 7d 20 7d  20 7d 20 7d 20 26 99 7e |} .}&} }  } } &.~
    [00:00:28.349,715] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:28.361,109] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 23  7d 23 7d 20 7d 30 81 7d |~.}#.!}# }#} }0.}
                                         26 7d 20 7d 20 7d 20 7d  20 83 7d 26 7d 20 7d    |&} } } }  .}&} }
    [00:00:28.388,747] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:8
    [00:00:28.400,053] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 20 7d 20 48 e5 7e                          | } } H.~         
    [00:00:28.418,213] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:28.429,055] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 20)
    [00:00:28.440,831] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:48
    [00:00:28.452,061] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 24 7d 20 7d 36 7d 23 |~.}#.!}! }$} }6}#
                                         7d 26 64 75 e0 27 81 7d  26 7d 20 7d 20 7d 20 7d |}&du.'.} &} } } }
                                         20 83 7d 26 7d 20 7d 20  7d 20 7d 20 22 7d 3d 7e | .}&} }  } } "}=~
    [00:00:28.489,219] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:17
    [00:00:28.500,442] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 83 7d 26 7d 20 7d  20 7d 20 7d 20 22 7d 3d |} .}&} }  } } "}=
                                         7e                                               |~                
    [00:00:28.528,135] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:28.538,251] <dbg> modem_chat: modem_chat_script_start: running script: nordic_nrf91_slm_periodic_chat_script
    [00:00:28.551,395] <dbg> modem_chat: modem_chat_script_next: nordic_nrf91_slm_periodic_chat_script: step: 0
    [00:00:28.563,838] <dbg> modem_chat: modem_chat_script_next: sending: AT+CEREG?
    [00:00:28.573,867] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:9
    [00:00:28.584,999] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 45 52 45 47  3f                      |AT+CEREG ?       
    [00:00:28.603,145] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:28.614,269] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:28.632,411] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:28.643,813] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 23  7d 24 7d 20 7d 30 81 7d |~.}#.!}# }$} }0.}
                                         26 7d 20 7d 20 7d 20 7d  20 83 7d 26 7d 20 7d    |&} } } }  .}&} }
    [00:00:28.671,452] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:9
    [00:00:28.682,755] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 20 7d 20 8f 7d 35  7e                      | } } .}5 ~       
    [00:00:28.700,964] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:28.711,824] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 20)
    [00:00:28.723,594] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:47
    [00:00:28.734,822] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 25 7d 20 7d 36 7d 23 |~.}#.!}! }%} }6}#
                                         7d 26 64 75 e0 27 81 7d  26 7d 20 7d 20 7d 20 7d |}&du.'.} &} } } }
                                         20 83 7d 26 7d 20 7d 20  7d 20 7d 20 4e 2a 7e    | .}&} }  } } N*~
    [00:00:28.772,015] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:16
    [00:00:28.783,237] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 83 7d 26 7d 20 7d  20 7d 20 7d 20 4e 2a 7e |} .}&} }  } } N*~
    [00:00:28.801,437] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:21
    [00:00:28.812,835] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 45 52 45 47  3a 20 31 2c 35 0d 0a 0d |..+CEREG : 1,5...
                                         0a 4f 4b 0d 0a                                   |.OK..            
    [00:00:28.840,520] <dbg> modem_chat: modem_chat_log_received_command: +CEREG:  1 5
    [00:00:28.850,795] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:28.860,164] <dbg> modem_chat: modem_chat_script_stop: nordic_nrf91_slm_periodic_chat_script: complete
    [00:00:28.872,745] <dbg> modem_cellular: modem_cellular_log_event: event registered
    [00:00:28.883,081] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:28.893,841] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:28.905,235] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 23  7d 25 7d 20 7d 30 81 7d |~.}#.!}# }%} }0.}
                                         26 7d 20 7d 20 7d 20 7d  20 83 7d 26 7d 20 7d    |&} } } }  .}&} }
    [00:00:28.932,863] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:8
    [00:00:28.944,163] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 20 7d 20 a5 5d 7e                          | } } .]~         
    [00:00:28.962,317] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:28.973,158] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 20)
    [00:00:28.984,930] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:47
    [00:00:28.996,160] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 26 7d 20 7d 36 7d 23 |~.}#.!}! }&} }6}#
                                         7d 26 64 75 e0 27 81 7d  26 7d 20 7d 20 7d 20 7d |}&du.'.} &} } } }
                                         20 83 7d 26 7d 20 7d 20  7d 20 7d 20 fa 73 7e    | .}&} }  } } .s~
    [00:00:29.033,320] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:16
    [00:00:29.044,541] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7d 20 83 7d 26 7d 20 7d  20 7d 20 7d 20 fa 73 7e |} .}&} }  } } .s~
    [00:00:29.096,772] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:29.108,173] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 24  7d 26 7d 20 7d 30 81 7d |~.}#.!}$ }&} }0.}
                                         26 7d 20 7d 20 7d 20 7d  20 83 7d 26 7d 20 7d    |&} } } }  .}&} }
    [00:00:29.135,803] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:8
    [00:00:29.147,102] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 20 7d 20 98 37 7e                          | } } .7~         
    [00:00:29.165,265] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:29.176,104] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 20)
    [00:00:29.187,805] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:25
    [00:00:29.199,028] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 21  7d 27 7d 20 7d 2a 7d 23 |~.}#.!}! }'} }*}#
                                         7d 26 64 75 e0 27 45 62  7e                      |}&du.'Eb ~       
    [00:00:29.265,221] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:14
    [00:00:29.276,619] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 23 58 50 50 50 3a  20 31 2c 31 0d 0a       |..#XPPP:  1,1..  
    [00:00:29.294,776] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:26
    [00:00:29.306,171] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 21 7d 22  7d 27 7d 20 7d 2a 7d 23 |~.}#.!}" }'} }*}#
                                         7d 26 64 75 e0 27 2c 7d  36 7e                   |}&du.',} 6~      
    [00:00:29.333,815] <dbg> modem_chat: modem_chat_on_unknown_command_received: #XPPP: 1,1
    [00:00:29.344,534] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:29.355,348] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 14)
    Retrieving cellular info
    [00:00:29.371,397] <dbg> modem_chat: modem_chat_script_start: running script: get_signal_csq_chat_script
    [00:00:29.383,572] <dbg> modem_chat: modem_chat_script_next: get_signal_csq_chat_script: step: 0
    [00:00:29.395,042] <dbg> modem_chat: modem_chat_script_next: sending: AT+CSQ
    [00:00:29.404,783] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:6
    [00:00:29.415,908] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 53 51                                |AT+CSQ           
    [00:00:29.434,035] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:29.445,153] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:29.499,889] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:21
    [00:00:29.511,284] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 53 51 3a 20  39 39 2c 39 39 0d 0a 0d |..+CSQ:  99,99...
                                         0a 4f 4b 0d 0a                                   |.OK..            
    [00:00:29.538,914] <dbg> modem_chat: modem_chat_log_received_command: +CSQ:  99 99
    [00:00:29.549,164] <dbg> modem_chat: modem_chat_script_next: get_signal_csq_chat_script: step: 1
    [00:00:29.560,651] <dbg> modem_chat: modem_chat_log_received_command: OK
    [00:00:29.570,012] <dbg> modem_chat: modem_chat_script_stop: get_signal_csq_chat_script: complete
    [00:00:29.581,603] <dbg> modem_cellular: modem_cellular_log_event: event script success
    [00:00:29.592,321] <dbg> modem_chat: modem_chat_script_start: running script: get_signal_cesq_chat_script
    [00:00:29.604,594] <dbg> modem_chat: modem_chat_script_next: get_signal_cesq_chat_script: step: 0
    [00:00:29.616,156] <dbg> modem_chat: modem_chat_script_next: sending: AT+CESQ
    [00:00:29.625,984] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:7
    [00:00:29.637,113] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 45 53 51                             |AT+CESQ          
    [00:00:29.655,249] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:29.666,371] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:29.725,314] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:31
    [00:00:29.736,715] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 45 53 51 3a  20 39 39 2c 39 39 2c 32 |..+CESQ:  99,99,2
                                         35 35 2c 32 35 35 2c 32  33 2c 36 30 0d 0a 0d    |55,255,2 3,60...
    [00:00:29.764,401] <dbg> modem_chat: modem_chat_log_received_command: +CESQ:  99 99 255 255 23 60
    [00:00:29.775,968] <dbg> modem_chat: modem_chat_script_next: get_signal_cesq_chat_script: step: 1
    [00:00:30.357,130] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:29
    [00:00:30.368,357] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 57 7d 21  7d 21 7d 20 7d 2e 7d 21 |~.}#.W}! }!} }.}!
                                         7d 2a 33 35 39 ff fe 34  30 34 f6 fe 7e          |}*359..4 04..~   
    [00:00:30.433,151] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:30.444,552] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 28  7d 21 7d 20 7d 32 80 57 |~.}#.!}( }!} }2.W
                                         7d 21 7d 21 7d 20 7d 2e  7d 21 7d 2a 33 35 39    |}!}!} }. }!}*359
    [00:00:30.472,182] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:6
    [00:00:30.483,486] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         ff fe 34 9c fc 7e                                |..4..~           
    [00:00:30.501,641] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:30.512,488] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 22)
    [00:00:30.524,199] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:43
    [00:00:30.535,421] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 27  7d 21 7d 20 7d 34 c0 21 |~.}#.!}' }!} }4.!
                                         7d 28 7d 21 7d 20 7d 32  80 57 7d 21 7d 21 7d 20 |}(}!} }2 .W}!}!}
                                         7d 2e 7d 21 7d 2a 33 35  93 66 7e                |}.}!}*35 .f~     
    [00:00:30.572,560] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:12
    [00:00:30.583,780] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 2e 7d 21 7d 2a 33  35 93 66 7e             | }.}!}*3 5.f~    
    [00:00:30.893,819] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:31.626,000] <wrn> modem_chat: get_signal_cesq_chat_script: timed out
    [00:00:31.635,917] <dbg> modem_cellular: modem_cellular_log_event: event script failed
    [00:00:31.646,539] <dbg> modem_chat: modem_chat_script_start: running script: get_signal_cesq_chat_script
    [00:00:31.658,811] <dbg> modem_chat: modem_chat_script_next: get_signal_cesq_chat_script: step: 0
    [00:00:31.670,371] <dbg> modem_chat: modem_chat_script_next: sending: AT+CESQ
    [00:00:31.680,200] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:7
    [00:00:31.691,326] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         41 54 2b 43 45 53 51                             |AT+CESQ          
    [00:00:31.709,463] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:2 cr:1 pf:0 type:UIH dlen:2
    [00:00:31.720,588] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a                                            |..               
    [00:00:31.779,531] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:2 cr:1 pf:0 type:UIH dlen:31
    [00:00:31.790,930] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         0d 0a 2b 43 45 53 51 3a  20 39 39 2c 39 39 2c 32 |..+CESQ:  99,99,2
                                         35 35 2c 32 35 35 2c 32  34 2c 36 30 0d 0a 0d    |55,255,2 4,60...
    [00:00:31.818,576] <dbg> modem_chat: modem_chat_on_unknown_command_received:
    [00:00:31.828,525] <dbg> modem_chat: modem_chat_log_received_command: +CESQ:  99 99 255 255 24 60
    [00:00:31.840,092] <dbg> modem_chat: modem_chat_script_next: get_signal_cesq_chat_script: step: 1
    [00:00:33.357,258] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:29
    [00:00:33.368,488] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 80 57 7d 21  7d 21 7d 20 7d 2e 7d 21 |~.}#.W}! }!} }.}!
                                         7d 2a 33 35 39 ff fe 34  30 34 f6 fe 7e          |}*359..4 04..~   
    [00:00:33.433,410] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:31
    [00:00:33.444,815] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 28  7d 21 7d 20 7d 32 80 57 |~.}#.!}( }!} }2.W
                                         7d 21 7d 21 7d 20 7d 2e  7d 21 7d 2a 33 35 39    |}!}!} }. }!}*359
    [00:00:33.472,457] <dbg> modem_cmux: modem_cmux_log_frame: rcvd ch:1 cr:1 pf:0 type:UIH dlen:6
    [00:00:33.483,768] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         ff fe 34 9c fc 7e                                |..4..~           
    [00:00:33.501,931] <dbg> modem_ppp: modem_ppp_process_received_byte: Receiving PPP frame
    [00:00:33.512,777] <dbg> modem_ppp: modem_ppp_process_received_byte: Received PPP frame (len 22)
    [00:00:33.524,491] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:43
    [00:00:33.535,720] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 c0 21 7d 27  7d 21 7d 20 7d 34 c0 21 |~.}#.!}' }!} }4.!
                                         7d 28 7d 21 7d 20 7d 32  80 57 7d 21 7d 21 7d 20 |}(}!} }2 .W}!}!}
                                         7d 2e 7d 21 7d 2a 33 35  93 66 7e                |}.}!}*35 .f~     
    [00:00:33.572,878] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:12
    [00:00:33.584,101] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         20 7d 2e 7d 21 7d 2a 33  35 93 66 7e             | }.}!}*3 5.f~    
    [00:00:33.646,588] <dbg> modem_cellular: modem_cellular_log_event: event timeout
    [00:00:33.680,240] <wrn> modem_chat: get_signal_cesq_chat_script: timed out
    [00:00:33.690,153] <dbg> modem_cellular: modem_cellular_log_event: event script failed
    IMEI: 359404230396419
    MODEL_ID: nRF9151-LACA
    MANUFACTURER: Nordic Semiconductor ASA
    SIM_IMSI:
    SIM_ICCID:
    FW_VERSION: mfw_nrf91x1_2.0.2
    Performing DNS lookup of 34.88.0.90
    Resolved to 34.88.0.90
    Opening UDP socket
    Socket opened
    Sending echo packet
    [00:00:33.751,344] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:826
    [00:00:33.762,693] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         7e ff 7d 23 7d 20 21 45  7d 20 7d 24 7d 3c 7d 20 |~.}#} !E } }$}<}
                                         7d 20 7d 20 7d 20 40 7d  31 7d 2f 83 64 75 e0 27 |} } } @} 1}/.du.'
                                         22 58 7d 20 5a dc d7 7d  30 92 7d 24 7d 28 a4 24 |"X} Z..} 0.}$}(.$
                                         a3 a0 59 7d 3e ff cc 7d  35 2a 7d 3b b8 91 f6 f7 |..Y}>..} 5*};....
                                         64 cd 82 93 d0 c9 ce ef  fc 85 da 7d 2b e8 7d 21 |d....... ...}+.}!
                                         a6 e7 94 3d 32 83 7d 20  39 7d 5e df 2c f5 8a fb |...=2.}  9}^.,...
                                         7d 38 71 56 d7 c4 ad e2  73 30 a9 2e cf 5c 65 3a |}8qV.... s0...\e:
                                         eb 48 e1 7d 26 c7 f4 7d  3d 92 63 60 7d 39 de bf |.H.}&..} =.c`}9..
                                         8c d5 ea db 78 51 b6 b7  24 8d 42 53 90 89 8e af |....xQ.. $.BS....
                                         bc 45 9a cb a8 c1 66 a7  54 fd f2 43 c0 f9 3e 9f |.E....f. T..C..>.
                                         ec b5 4a bb d8 31 7d 36  97 84 6d a2 33 f0 69 ee |..J..1}6 ..m.3.i.
                                         8f 7d 3c 25 fa ab 7d 28  a1 c6 87 b4 dd 52 23 20 |.}<%..}( .....R#
                                         d9 9e 7f 4c 95 aa 9b 38  7d 31 76 77 e4 4d 7d 22 |...L...8 }1vw.M}"
                                         7d 33 50 49 4e 6f 7c 7d  25 5a 8b 68 81 26 67 7d |}3PINo|} %Z.h.&g}
                                         34 bd b2 7d 23 80 b9 fe  5f ac 75 7d 2a 7b 98 f1 |4..}#... _.u}*{..
                                         d6 57 44 2d 62 f3 b0 29  ae 4f dc e5 ba 6b c8 61 |.WD-b..) .O...k.a
                                         86 47 74 9d 7d 32 e3 e0  99 5e 3f 7d 2c 55 6a 5b |.Gt.}2.. .^?},Uj[
                                         f8 d1 36 37 a4 7d 2d c2  d3 7d 30 7d 29 7d 2e 2f |..67.}-. .}0})}./
                                         3c c5 7d 3a 4b 28 41 e6  27 d4 7d 5d 72 c3 40 79 |<.}:K(A. '.}]r.@y
                                         be 7d 3f 6c 35 ca 3b 58  b1 96 7d 37 7d 24 ed 22 |.}?l5.;X ..}7}$."
                                         b3 70 e9 6e 7d 2f 9c a5  7a 2b 88 21 46 7d 27 34 |.p.n}/.. z+.!F}'4
                                         5d d2 a3 a0 59 7d 3e ff  cc 7d 35 2a 7d 3b b8 91 |]...Y}>. .}5*};..
                                         f6 f7 64 cd 82 93 d0 c9  ce ef fc 85 da 7d 2b e8 |..d..... .....}+.
                                         7d 21 a6 e7 94 3d 32 83  7d 20 39 7d 5e df 2c f5 |}!...=2. } 9}^.,.
                                         8a fb 7d 38 71 56 d7 c4  ad e2 73 30 a9 2e cf 5c |..}8qV.. ..s0...\
                                         65 3a eb 48 e1 7d 26 c7  f4 7d 3d 92 63 60 7d 39 |e:.H.}&. .}=.c`}9
                                         de bf 8c d5 ea db 78 51  b6 b7 24 8d 42 53 90 89 |......xQ ..$.BS..
                                         8e af bc 45 9a cb a8 c1  66 a7 54 fd f2 43 c0 f9 |...E.... f.T..C..
                                         3e 9f ec b5 4a bb d8 31  7d 36 97 84 6d a2 33 f0 |>...J..1 }6..m.3.
                                         69 ee 8f 7d 3c 25 fa ab  7d 28 a1 c6 87 b4 dd 52 |i..}<%.. }(.....R
                                         23 20 d9 9e 7f 4c 95 aa  9b 38 7d 31 76 77 e4 4d |# ...L.. .8}1vw.M
                                         7d 22 7d 33 50 49 4e 6f  7c 7d 25 5a 8b 68 81 26 |}"}3PINo |}%Z.h.&
                                         67 7d 34 bd b2 7d 23 80  b9 fe 5f ac 75 7d 2a 7b |g}4..}#. .._.u}*{
                                         98 f1 d6 57 44 2d 62 f3  b0 29 ae 4f dc e5 ba 6b |...WD-b. .).O...k
                                         c8 61 86 47 74 9d 7d 32  e3 e0 99 5e 3f 7d 2c 55 |.a.Gt.}2 ...^?},U
                                         6a 5b f8 d1 36 37 a4 7d  2d c2 d3 7d 30 7d 29 7d |j[..67.} -..}0})}
                                         2e 2f 3c c5 7d 3a 4b 28  41 e6 27 d4 7d 5d 72 c3 |./<.}:K( A.'.}]r.
                                         40 79 be 7d 3f 6c 35 ca  3b 58 b1 96 7d 37 7d 24 |@y.}?l5. ;X..}7}$
                                         ed 22 b3 70 e9 6e 7d 2f  9c a5 7a 2b 88 21 46 7d |.".p.n}/ ..z+.!F}
                                         27 34 5d d2 a3 a0 59 7d  3e ff cc 7d 35 2a 7d 3b |'4]...Y} >..}5*};
                                         b8 91 f6 f7 64 cd 82 93  d0 c9 ce ef fc 85 da 7d |....d... .......}
                                         2b e8 7d 21 a6 e7 94 3d  32 83 7d 20 39 7d 5e df |+.}!...= 2.} 9}^.
                                         2c f5 8a fb 7d 38 71 56  d7 c4 ad e2 73 30 a9 2e |,...}8qV ....s0..
                                         cf 5c 65 3a eb 48 e1 7d  26 c7 f4 7d 3d 92 63 60 |.\e:.H.} &..}=.c`
                                         7d 39 de bf 8c d5 ea db  78 51 b6 b7 24 8d 42 53 |}9...... xQ..$.BS
                                         90 89 8e af bc 45 9a cb  a8 c1 66 a7 54 fd f2 43 |.....E.. ..f.T..C
                                         c0 f9 3e 9f ec b5 4a bb  d8 31 7d 36 97 84 6d a2 |..>...J. .1}6..m.
                                         33 f0 69 ee 8f 7d 3c 25  fa ab 7d 28 a1 c6 87 b4 |3.i..}<% ..}(....
                                         dd 52 23 20 d9 9e 7f 4c  95 aa 9b 38 7d 31 76 77 |.R# ...L ...8}1vw
                                         e4 4d 7d 22 7d 33 50 49  4e 6f 7c 7d 25 5a 8b 68 |.M}"}3PI No|}%Z.h
                                         81 26 67 7d 34 bd b2 7d  23 80 b9 fe 5f ac 75 7d |.&g}4..} #..._.u}
                                         2a 7b 98 f1 d6 57 44 2d  62 f3                   |*{...WD- b.      
    [00:00:34.264,089] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:795
    [00:00:34.275,432] <dbg> modem_cmux: modem_cmux_log_frame: data:
                                         27 22 58 7d 20 5a dc d7  7d 30 92 7d 24 7d 28 a4 |'"X} Z.. }0.}$}(.
                                         24 a3 a0 59 7d 3e ff cc  7d 35 2a 7d 3b b8 91 f6 |$..Y}>.. }5*};...
                                         f7 64 cd 82 93 d0 c9 ce  ef fc 85 da 7d 2b e8 7d |.d...... ....}+.}
                                         21 a6 e7 94 3d 32 83 7d  20 39 7d 5e df 2c f5 8a |!...=2.}  9}^.,..
                                         fb 7d 38 71 56 d7 c4 ad  e2 73 30 a9 2e cf 5c 65 |.}8qV... .s0...\e
                                         3a eb 48 e1 7d 26 c7 f4  7d 3d 92 63 60 7d 39 de |:.H.}&.. }=.c`}9.
                                         bf 8c d5 ea db 78 51 b6  b7 24 8d 42 53 90 89 8e |.....xQ. .$.BS...
                                         af bc 45 9a cb a8 c1 66  a7 54 fd f2 43 c0 f9 3e |..E....f .T..C..>
                                         9f ec b5 4a bb d8 31 7d  36 97 84 6d a2 33 f0 69 |...J..1} 6..m.3.i
                                         ee 8f 7d 3c 25 fa ab 7d  28 a1 c6 87 b4 dd 52 23 |..}<%..} (.....R#
                                         20 d9 9e 7f 4c 95 aa 9b  38 7d 31 76 77 e4 4d 7d | ...L... 8}1vw.M}
                                         22 7d 33 50 49 4e 6f 7c  7d 25 5a 8b 68 81 26 67 |"}3PINo| }%Z.h.&g
                                         7d 34 bd b2 7d 23 80 b9  fe 5f ac 75 7d 2a 7b 98 |}4..}#.. ._.u}*{.
                                         f1 d6 57 44 2d 62 f3 b0  29 ae 4f dc e5 ba 6b c8 |..WD-b.. ).O...k.
                                         61 86 47 74 9d 7d 32 e3  e0 99 5e 3f 7d 2c 55 6a |a.Gt.}2. ..^?},Uj
                                         5b f8 d1 36 37 a4 7d 2d  c2 d3 7d 30 7d 29 7d 2e |[..67.}- ..}0})}.
                                         2f 3c c5 7d 3a 4b 28 41  e6 27 d4 7d 5d 72 c3 40 |/<.}:K(A .'.}]r.@
                                         79 be 7d 3f 6c 35 ca 3b  58 b1 96 7d 37 7d 24 ed |y.}?l5.; X..}7}$.
                                         22 b3 70 e9 6e 7d 2f 9c  a5 7a 2b 88 21 46 7d 27 |".p.n}/. .z+.!F}'
                                         34 5d d2 a3 a0 59 7d 3e  ff cc 7d 35 2a 7d 3b b8 |4]...Y}> ..}5*};.
                                         91 f6 f7 64 cd 82 93 d0  c9 ce ef fc 85 da 7d 2b |...d.... ......}+
                                         e8 7d 21 a6 e7 94 3d 32  83 7d 20 39 7d 5e df 2c |.}!...=2 .} 9}^.,
                                         f5 8a fb 7d 38 71 56 d7  c4 ad e2 73 30 a9 2e cf |...}8qV. ...s0...
                                         5c 65 3a eb 48 e1 7d 26  c7 f4 7d 3d 92 63 60 7d |\e:.H.}& ..}=.c`}
                                         39 de bf 8c d5 ea db 78  51 b6 b7 24 8d 42 53 90 |9......x Q..$.BS.
                                         89 8e af bc 45 9a cb a8  c1 66 a7 54 fd f2 43 c0 |....E... .f.T..C.
                                         f9 3e 9f ec b5 4a bb d8  31 7d 36 97 84 6d a2 33 |.>...J.. 1}6..m.3
                                         f0 69 ee 8f 7d 3c 25 fa  ab 7d 28 a1 c6 87 b4 dd |.i..}<%. .}(.....
                                         52 23 20 d9 9e 7f 4c 95  aa 9b 38 7d 31 76 77 e4 |R# ...L. ..8}1vw.
                                         4d 7d 22 7d 33 50 49 4e  6f 7c 7d 25 5a 8b 68 81 |M}"}3PIN o|}%Z.h.
                                         26 67 7d 34 bd b2 7d 23  80 b9 fe 5f ac 75 7d 2a |&g}4..}# ..._.u}*
                                         7b 98 f1 d6 57 44 2d 62  f3 b0 29 ae 4f dc e5 ba |{...WD-b ..).O...
                                         6b c8 61 86 47 74 9d 7d  32 e3 e0 99 5e 3f 7d 2c |k.a.Gt.} 2...^?},
                                         55 6a 5b f8 d1 36 37 a4  7d 2d c2 d3 7d 30 7d 29 |Uj[..67. }-..}0})
                                         7d 2e 2f 3c c5 7d 3a 4b  28 41 e6 27 d4 7d 5d 72 |}./<.}:K (A.'.}]r
                                         c3 40 79 be 7d 3f 6c 35  ca 3b 58 b1 96 7d 37 7d |.@y.}?l5 .;X..}7}
                                         24 ed 22 b3 70 e9 6e 7d  2f 9c a5 7a 2b 88 21 46 |$.".p.n} /..z+.!F
                                         7d 27 34 5d d2 a3 a0 59  7d 3e ff cc 7d 35 2a 7d |}'4]...Y }>..}5*}
                                         3b b8 91 f6 f7 64 cd 82  93 d0 c9 ce ef fc 85 da |;....d.. ........
                                         7d 2b e8 7d 21 a6 e7 94  3d 32 83 7d 20 39 7d 5e |}+.}!... =2.} 9}^
                                         df 2c f5 8a fb 7d 38 71  56 d7 c4 ad e2 73 30 a9 |.,...}8q V....s0.
                                         2e cf 5c 65 3a eb 48 e1  7d 26 c7 f4 7d 3d 92 63 |..\e:.H. }&..}=.c
                                         60 7d 39 de bf 8c d5 ea  db 78 51 b6 b7 24 8d 42 |`}9..... .xQ..$.B
                                         53 90 89 8e af bc 45 9a  cb a8 c1 66 a7 54 fd f2 |S.....E. ...f.T..
                                         43 c0 f9 3e 9f ec b5 4a  bb d8 31 7d 36 97 84 6d |C..>...J ..1}6..m
                                         a2 33 f0 69 ee 8f 7d 3c  25 fa ab 7d 28 a1 c6 87 |.3.i..}< %..}(...
                                         b4 dd 52 23 20 d9 9e 7f  4c 95 aa 9b 38 7d 31 76 |..R# ... L...8}1v
                                         77 e4 4d 7d 22 7d 33 50  49 4e 6f 7c 7d 25 5a 8b |w.M}"}3P INo|}%Z.
                                         68 81 26 67 7d 34 bd b2  7d 23 80 b9 fe 5f ac 75 |h.&g}4.. }#..._.u
                                         7d 2a 7b 98 f1 d6 57 44  2d 62 f3                |}*{...WD -b.     
    [00:00:34.757,977] <dbg> modem_cmux: modem_cmux_log_frame: tx ch:1 cr:1 pf:0 type:UIH dlen:764
    [00:00:34.769,321] <dbg> modem_cmux: modem_cmux_log_frame: data:

    The rest of the log is just packet handling, I am not experiencing problems with that.

    Is everything working as expected if you omit lines shown below?

    Everything works as expected even if I don't omit those lines, those lines don't really interfere with application. I am able to connect to the server and send and receive the packets.

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