mqtt_simple sample gets error -2 in getaddrinfo

[tomtomtom2401]

Hello,

We have developed our own module based on the nrf9160 DK and want to use it to send data to a MQTT broker. A few days ago on the dev-kit everything worked fine, now the new PCBs have arrived and we get this error in the mqtt_simple sample (as well as in our own code, but in a little different format):

 *** Booting Zephyr OS build v3.2.99-ncs1 ***                                      
[00:00:00.504,638] <inf> mqtt_simple: The MQTT simple sample started               
[00:00:00.504,699] <inf> mqtt_simple: Disabling PSM and eDRX                              
[00:00:00.505,401] <inf> mqtt_simple: LTE Link Connecting...                              
[00:00:09.277,618] <inf> mqtt_simple: LTE Link Connected!                                 
[00:00:09.277,862] <err> mqtt_simple: getaddrinfo failed: -2                              
[00:00:09.277,893] <err> mqtt_simple: Failed to initialize broker connection              
[00:00:09.277,893] <err> mqtt_simple: client_init: -10   

We just added the following config lines to use NB-IoT in the sample:

CONFIG_LTE_NETWORK_MODE_NBIOT=y
CONFIG_LTE_MODE_PREFERENCE_NBIOT=y

When using the IP address of the moquitto test server, it works perfectly fine.

*** Booting Zephyr OS build v3.2.99-ncs1 ***                                      
[00:00:00.568,603] <inf> mqtt_simple: The MQTT simple sample started                      
[00:00:00.568,664] <inf> mqtt_simple: Disabling PSM and eDRX                              
[00:00:00.569,366] <inf> mqtt_simple: LTE Link Connecting...                              
[00:00:11.186,523] <inf> mqtt_simple: LTE Link Connected!                                 
[00:00:11.186,950] <inf> mqtt_simple: IPv4 Address found 91.121.93.94                     
[00:00:11.187,438] <dbg> mqtt_simple: client_id_get: client_id = nrf-2EB11F7FD373E99C     
[00:00:11.598,114] <inf> mqtt_simple: MQTT client connected                               
[00:00:11.598,144] <inf> mqtt_simple: Subscribing to: my/subscribe/topic len 22       
[00:00:11.746,185] <inf> mqtt_simple: SUBACK packet id: 1234                              
[00:06:48.615,112] <inf> mqtt_simple: MQTT PUBLISH result=0 len=15                        
[00:06:48.615,203] <inf> mqtt_simple: Received: test with ip address                           
[00:06:48.615,783] <inf> mqtt_simple: Publishing: test with ip address                         
[00:06:48.615,814] <inf> mqtt_simple: to topic: my/publish/topic len: 20              
[00:06:48.761,352] <inf> mqtt_simple: PUBACK packet id: 39802 

Has anybody an idea? 

We are using the NCS v2.2.0 with the toolchain 2.2.0 (but tried the 2.1.0 as well, as we used with the dev-kit), modem firmware is 1.2.3

Edit: I forgot to add: when using the same code on the dev-kit, it works also fine with the IP Address and the URL. Modem firmware is here also 1.2.3 - thats the reason we choose 1.2.3 instead of 1.3.3. We also use the same SIM card to prevent any errors from the provider side (bad DNS, APN, whatever...)

Thank you!

BR Thomas

[Hakon]

Hello,

which SIM card are you using?

[tomtomtom2401]

Hello,

We are using a m2m SIM from company "drei" from Austria. I've used the very same SIM card in the dev kit and in our module to exclude any errors from this side.
In the meantime, I tried to set the DNS manually (like in thread), but it only works randomly and only once after flashing the modem firmware. Then it looks like its running into a timeout and a watchdog restarts the module.

BR Thomas

[Achim Kraus]

> So your source addresses and port don't change?

My trace just contained one DNS request and a couple of CoAP/DTLS requests. On the modem side, the ip-address was stable (the port for the DNS to coap/dtls is changing, but then it's stable). The ip-breakout is then NATing that address/port, but this is not reflected in the modem-trace.

> Is there any other preferred method to set the DNS server

Did you modify the samples?

Would it be possible, that you use the "samples/nrf9160/coap_client" without modification?

I have no experience with "nrf_setdnsaddr". So far my devices are working without.

(I'm currently focus on other tasks, if I go back to develop for the nRF9160 I will try to make some captures also with repeated DNS request. We will see, how that works then.)

[tomtomtom2401]

Thank you for your detailled description!

The traces are from the mqtt_simple sample, but I can do it for the CoAP sample. The only thing i basically changed in both samples is the preferred usage of NB-IoT (instead of CAT-M).

CONFIG_LTE_NETWORK_MODE_NBIOT=y
CONFIG_LTE_MODE_PREFERENCE_NBIOT=y

# modem trace debugging
CONFIG_NRF_MODEM_LIB_TRACE=y

If I dont set the network mode to NBIOT it will not get any connection established.

I have traced the (more or less original) CoAP Sample, just with NB-IoT and modem trace enabled:

(I dont know if there is a difference between the trace collector and the trace collector preview, so I've done both - is just the conversion and live view in wireshark?)

coap_without_dns.bin (from original trace collector)

coap_without_dns.bin / coap_without_dns.pcapng

But I dont see any DNS requests here...

The DNS request from the older traces are only visible when manually setting the (i think it is the secondary, acc. to nrf_socket.h) DNS server with nrf_setdnsaddr()

[Achim Kraus]

nrf91-modem-library-custom-dns-and-nrf_setdnsaddr-support-status

With that, "nrf_setdnsaddr" may be not that important.

[Achim Kraus]

I'm really wondering. I had never too much trouble with the nRF9160 and DNS. Only on some "fast starts" I need that retry. I use 1.3.1, 1.3.2 and 1.3.3

Enable the trace and NB-IoT should not change the DNS, at least I didn't made that experience.

I guess, you will need to "ping" someone from Nordic to have an modem expert having an look at your traces.

The only left hint would be, to try a "AT%XFACTORYRESET=0" of the config.

[Hakon]

Is this a standard release of the 1.2.3 mfw? Or is it a pre-release or something else? I get some errors when I try to decode the trace file.

[tomtomtom2401]

It is the standard release of 1.2.3 and 1.3.3 which i downloaded from https://www.nordicsemi.com/Products/Development-hardware/nrf9160-dk/download

I've just seen the release of the 1.3.4 - should I give it a try?

[tomtomtom2401]

I have found this similar issue  nrf9160 NB-IoT DNS failure 

Do you have any thoughts on this? I don't find any config option for PCO/ePCO in Kconfig but when trying to set it via the AT command (AT%XEPCO=0) it doesn't work either.

[tomtomtom2401]

After a lot of reading we found a connection between the DNS lookup and the PDN setting of the modem - please correct me if I'm wrong.

We found one difference on the provider side (with the same SIM used): the "PDN max BW UL" and  "PDN max BW DL" is higher. (8000000/8000000 on the devkit to 50000000/150000000)
For my understanding this is the max. bandwidth for uplink and downlink - so it should not be the cause of the DNS problem?

[Achim Kraus]

> "PDN max BW UL" and  "PDN max BW DL" is higher. (8000000/8000000 on the devkit to 50000000/150000000)

Do you operate both, DK & other device, at the same location?

The "trace_with_dns.pcapng" shows in my opinion several "connects", what may explain the different ip-addresses and why the response doesn't reach the device. That may be caused by a instable network connection.

With newer firmware & sdk, you may also log the PDN callbacks (I guess that's changing), read the modem status with "AT%XMONITOR",  "AT+CGDCONT?" and "AT+CEINFO?". That would help to see, if the PDN context is changing and what signal conditions the device has.

With 1.2.3 you may check, what's available.

I would remove the call to "nrf_setdnsaddr", add some of the additional AT commands, reset the device config once with "AT%XFACTORYRESET=0" and then let the device run for a couple of minutes. Sometimes a first stable connect takes 1 or 2 minutes.

[tomtomtom2401]

Yes, they are both on my desk.

By the way: with the nrf_setdnsaddr the device reboots after a while. but I think I stopped the trace short before rebooting.

I have done a trace with the device trying to get the dns address every 10s and the AT commands described as described:

mqtt_simple_dns_request_redo.bin

mqtt_simple_dns_request_redo.pcapng

and the log output:

Fullscreen capture_2023-02-01_0900.txt Download

*** Booting Zephyr OS build v3.2.99-ncs1 ***
[00:00:00.604,675] <inf> nrf_modem_lib_trace: Trace thread ready
[00:00:00.606,140] <inf> nrf_modem_lib_trace: Trace level override: 2
[00:00:00.611,389] <inf> mqtt_simple: The MQTT simple sample started
[00:00:00.639,465] <inf> mqtt_simple: Modem response / reset: OK

[00:00:00.639,465] <inf> mqtt_simple: Disabling PSM and eDRX
[00:00:00.640,991] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 4
OK

[00:00:00.641,479] <inf> mqtt_simple: Modem response / CGDCONT: OK

[00:00:00.642,028] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,0,0,255,127
OK

[00:00:00.642,059] <inf> mqtt_simple: LTE Link Connecting...
[00:00:12.160,125] <inf> mqtt_simple: LTE Link Connected!
[00:00:12.160,949] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"","","23205","7615",9,3,"018B7DDE",292,1401,53,41,"","11100000","11100000","01010100"
OK

[00:00:12.161,468] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:00:12.162,017] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,C,8,1,-88,16
OK

[00:00:12.162,292] <inf> mqtt_simple: getaddrinfo result: -2
[00:00:22.163,208] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,46,"","11100000","11100000","01010100"
OK

[00:00:22.163,879] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:00:22.164,550] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,C,8,1,-87,21
OK

[00:00:22.164,886] <inf> mqtt_simple: getaddrinfo result: -2
[00:00:32.174,163] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,42,"","11100000","11100000","01010100"
OK

[00:00:32.174,743] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:00:32.175,476] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,17
OK

[00:00:32.175,811] <inf> mqtt_simple: getaddrinfo result: -2
[00:00:42.185,119] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,40,"","11100000","11100000","01010100"
OK

[00:00:42.185,699] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:00:42.186,248] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,15
OK

[00:00:42.186,584] <inf> mqtt_simple: getaddrinfo result: -2
[00:00:52.195,892] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:00:52.196,441] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:00:52.196,960] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:00:52.197,326] <inf> mqtt_simple: getaddrinfo result: -2
[00:01:02.206,604] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:01:02.207,336] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:01:02.207,916] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:01:02.208,221] <inf> mqtt_simple: getaddrinfo result: -2
[00:01:12.217,498] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,42,"","11100000","11100000","01010100"
OK

[00:01:12.218,048] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:01:12.218,597] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,17
OK

[00:01:12.218,933] <inf> mqtt_simple: getaddrinfo result: -2
[00:01:22.219,818] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,41,"","11100000","11100000","01010100"
OK

[00:01:22.220,520] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:01:22.221,099] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,16
OK

[00:01:22.221,405] <inf> mqtt_simple: getaddrinfo result: -2
[00:01:32.230,743] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,42,"","11100000","11100000","01010100"
OK

[00:01:32.231,292] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:01:32.231,872] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,17
OK

[00:01:32.232,238] <inf> mqtt_simple: getaddrinfo result: -2
[00:01:42.241,516] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,42,"","11100000","11100000","01010100"
OK

[00:01:42.242,095] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:01:42.242,614] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,17
OK

[00:01:42.242,980] <inf> mqtt_simple: getaddrinfo result: -2
[00:01:52.252,258] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,41,"","11100000","11100000","01010100"
OK

[00:01:52.252,838] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:01:52.253,570] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,16
OK

[00:01:52.253,906] <inf> mqtt_simple: getaddrinfo result: -2
[00:02:02.263,214] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,43,"","11100000","11100000","01010100"
OK

[00:02:02.263,824] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:02:02.264,373] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,18
OK

[00:02:02.264,739] <inf> mqtt_simple: getaddrinfo result: -2
[00:02:12.274,047] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,38,"","11100000","11100000","01010100"
OK

[00:02:12.274,597] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:02:12.275,146] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,13
OK

[00:02:12.275,512] <inf> mqtt_simple: getaddrinfo result: -2
[00:02:22.284,820] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,42,"","11100000","11100000","01010100"
OK

[00:02:22.285,369] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:02:22.285,919] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,17
OK

[00:02:22.286,285] <inf> mqtt_simple: getaddrinfo result: -2
[00:02:32.295,593] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,43,"","11100000","11100000","01010100"
OK

[00:02:32.296,142] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:02:32.296,722] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,18
OK

[00:02:32.297,058] <inf> mqtt_simple: getaddrinfo result: -2
[00:02:42.306,335] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:02:42.306,915] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:02:42.307,464] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:02:42.307,800] <inf> mqtt_simple: getaddrinfo result: -2
[00:02:52.317,047] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:02:52.317,626] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:02:52.318,145] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:02:52.318,511] <inf> mqtt_simple: getaddrinfo result: -2
[00:03:02.327,789] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:03:02.328,338] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:03:02.328,887] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:03:02.329,254] <inf> mqtt_simple: getaddrinfo result: -2
[00:03:12.330,261] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:03:12.330,841] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:03:12.331,420] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:03:12.331,756] <inf> mqtt_simple: getaddrinfo result: -2
[00:03:22.341,094] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,42,"","11100000","11100000","01010100"
OK

[00:03:22.341,644] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:03:22.342,376] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,17
OK

[00:03:22.342,712] <inf> mqtt_simple: getaddrinfo result: -2
[00:03:32.352,050] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,43,"","11100000","11100000","01010100"
OK

[00:03:32.352,600] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:03:32.353,179] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,18
OK

[00:03:32.353,546] <inf> mqtt_simple: getaddrinfo result: -2
[00:03:42.362,823] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,39,"","11100000","11100000","01010100"
OK

[00:03:42.363,403] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:03:42.363,922] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,14
OK

[00:03:42.364,288] <inf> mqtt_simple: getaddrinfo result: -2
[00:03:52.373,565] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,40,"","11100000","11100000","01010100"
OK

[00:03:52.374,145] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:03:52.374,877] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,15
OK

[00:03:52.375,213] <inf> mqtt_simple: getaddrinfo result: -2
[00:04:02.384,521] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,40,"","11100000","11100000","01010100"
OK

[00:04:02.385,131] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:04:02.385,681] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,15
OK

[00:04:02.386,047] <inf> mqtt_simple: getaddrinfo result: -2
[00:04:12.395,355] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,38,"","11100000","11100000","01010100"
OK

[00:04:12.395,904] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:04:12.396,453] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,13
OK

[00:04:12.396,820] <inf> mqtt_simple: getaddrinfo result: -2
[00:04:22.406,127] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:04:22.406,677] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:04:22.407,409] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:04:22.407,745] <inf> mqtt_simple: getaddrinfo result: -2
[00:04:32.417,083] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,42,"","11100000","11100000","01010100"
OK

[00:04:32.417,633] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:04:32.418,182] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,17
OK

[00:04:32.418,548] <inf> mqtt_simple: getaddrinfo result: -2
[00:04:42.427,795] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:04:42.428,375] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:04:42.428,924] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:04:42.429,260] <inf> mqtt_simple: getaddrinfo result: -2
[00:04:52.438,507] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:04:52.439,086] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:04:52.439,605] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:04:52.439,971] <inf> mqtt_simple: getaddrinfo result: -2
[00:05:02.440,979] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:05:02.441,558] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:05:02.442,138] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:05:02.442,474] <inf> mqtt_simple: getaddrinfo result: -2
[00:05:12.451,812] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:05:12.452,362] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:05:12.452,911] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:05:12.453,277] <inf> mqtt_simple: getaddrinfo result: -2
[00:05:22.462,585] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,39,"","11100000","11100000","01010100"
OK

[00:05:22.463,134] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:05:22.463,684] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,14
OK

[00:05:22.464,050] <inf> mqtt_simple: getaddrinfo result: -2
[00:05:32.473,358] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,40,"","11100000","11100000","01010100"
OK

[00:05:32.473,907] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:05:32.474,487] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,15
OK

[00:05:32.474,853] <inf> mqtt_simple: getaddrinfo result: -2
[00:05:42.484,130] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:05:42.484,710] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:05:42.485,229] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:05:42.485,595] <inf> mqtt_simple: getaddrinfo result: -2
[00:05:52.494,873] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,41,"","11100000","11100000","01010100"
OK

[00:05:52.495,452] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:05:52.496,185] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,16
OK

[00:05:52.496,520] <inf> mqtt_simple: getaddrinfo result: -2
[00:06:02.505,828] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:06:02.506,439] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:06:02.506,988] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:06:02.507,354] <inf> mqtt_simple: getaddrinfo result: -2
[00:06:12.516,662] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:06:12.517,211] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:06:12.517,944] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:06:12.518,280] <inf> mqtt_simple: getaddrinfo result: -2
[00:06:22.527,618] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:06:22.528,167] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:06:22.528,717] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:06:22.529,083] <inf> mqtt_simple: getaddrinfo result: -2
[00:06:32.538,391] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,41,"","11100000","11100000","01010100"
OK

[00:06:32.538,940] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:06:32.539,489] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,16
OK

[00:06:32.539,855] <inf> mqtt_simple: getaddrinfo result: -2
[00:06:42.549,102] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:06:42.549,682] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:06:42.550,415] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:06:42.550,750] <inf> mqtt_simple: getaddrinfo result: -2
[00:06:52.551,788] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:06:52.552,337] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:06:52.552,947] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:06:52.553,283] <inf> mqtt_simple: getaddrinfo result: -2
[00:07:02.562,591] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,41,"","11100000","11100000","01010100"
OK

[00:07:02.563,201] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:07:02.563,751] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,16
OK

[00:07:02.564,117] <inf> mqtt_simple: getaddrinfo result: -2
[00:07:12.573,425] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,41,"","11100000","11100000","01010100"
OK

[00:07:12.573,974] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:07:12.574,523] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,16
OK

[00:07:12.574,890] <inf> mqtt_simple: getaddrinfo result: -2
[00:07:22.584,197] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:07:22.584,747] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:07:22.585,479] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:07:22.585,815] <inf> mqtt_simple: getaddrinfo result: -2
[00:07:32.595,153] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,41,"","11100000","11100000","01010100"
OK

[00:07:32.595,733] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:07:32.596,282] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,16
OK

[00:07:32.596,649] <inf> mqtt_simple: getaddrinfo result: -2
[00:07:42.605,926] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,41,"","11100000","11100000","01010100"
OK

[00:07:42.606,506] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:07:42.607,025] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,16
OK

[00:07:42.607,391] <inf> mqtt_simple: getaddrinfo result: -2
[00:07:52.616,668] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:07:52.617,248] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:07:52.617,980] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:07:52.618,316] <inf> mqtt_simple: getaddrinfo result: -2
[00:08:02.627,624] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:08:02.628,234] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:08:02.628,784] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:08:02.629,150] <inf> mqtt_simple: getaddrinfo result: -2
[00:08:12.638,458] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,40,"","11100000","11100000","01010100"
OK

[00:08:12.639,007] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:08:12.639,739] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,15
OK

[00:08:12.640,075] <inf> mqtt_simple: getaddrinfo result: -2
[00:08:22.649,414] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,42,"","11100000","11100000","01010100"
OK

[00:08:22.649,963] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:08:22.650,512] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,17
OK

[00:08:22.650,878] <inf> mqtt_simple: getaddrinfo result: -2
[00:08:32.660,156] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,43,"","11100000","11100000","01010100"
OK

[00:08:32.660,705] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:08:32.661,285] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,18
OK

[00:08:32.661,621] <inf> mqtt_simple: getaddrinfo result: -2
[00:08:42.662,597] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,40,"","11100000","11100000","01010100"
OK

[00:08:42.663,177] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:08:42.663,757] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,15
OK

[00:08:42.664,093] <inf> mqtt_simple: getaddrinfo result: -2
[00:08:52.673,370] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,42,"","11100000","11100000","01010100"
OK

[00:08:52.673,950] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:08:52.674,499] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,17
OK

[00:08:52.674,865] <inf> mqtt_simple: getaddrinfo result: -2
[00:09:02.684,143] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,43,"","11100000","11100000","01010100"
OK

[00:09:02.684,753] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:09:02.685,302] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,18
OK

[00:09:02.685,668] <inf> mqtt_simple: getaddrinfo result: -2
[00:09:12.694,976] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,44,"","11100000","11100000","01010100"
OK

[00:09:12.695,526] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:09:12.696,075] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,19
OK

[00:09:12.696,441] <inf> mqtt_simple: getaddrinfo result: -2
[00:09:22.705,749] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,44,"","11100000","11100000","01010100"
OK

[00:09:22.706,298] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:09:22.706,848] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,19
OK

[00:09:22.707,214] <inf> mqtt_simple: getaddrinfo result: -2
[00:09:32.716,522] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,55,41,"","11100000","11100000","01010100"
OK

[00:09:32.717,071] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:09:32.717,651] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-86,16
OK

[00:09:32.718,017] <inf> mqtt_simple: getaddrinfo result: -2
[00:09:42.727,294] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,42,"","11100000","11100000","01010100"
OK

[00:09:42.727,874] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:09:42.728,393] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,17
OK

[00:09:42.728,759] <inf> mqtt_simple: getaddrinfo result: -2
[00:09:52.738,037] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,42,"","11100000","11100000","01010100"
OK

[00:09:52.738,616] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:09:52.739,349] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,17
OK

[00:09:52.739,685] <inf> mqtt_simple: getaddrinfo result: -2
[00:10:02.749,023] <inf> mqtt_simple: Modem response / monitor: %XMONITOR: 1,"3AT","3AT","23205","7615",9,3,"018B7DDE",292,1401,54,39,"","11100000","11100000","01010100"
OK

[00:10:02.749,572] <inf> mqtt_simple: Modem response / CGDCONT: +CGDCONT: 0,"IP","m2m.drei.at","10.71.192.243",0,0
OK

[00:10:02.750,122] <inf> mqtt_simple: Modem response / CEINFO: +CEINFO: 0,1,I,8,2,-87,14
OK

[00:10:02.750,488] <inf> mqtt_simple: getaddrinfo result: -2
[00:10:12.750,579] <err> mqtt_simple: getaddrinfo failed: -2
[00:10:12.750,610] <err> mqtt_simple: Failed to initialize broker connection
[00:10:12.750,640] <err> mqtt_simple: client_init: -10
uart:~$

I will do the same with the devkit, but the trace is not getting logged at the moment. I will upload as soon as it works...