nrf9160 modem get stuck in LTE seaching

[ced27]

Hello,

for some days now, my modem is unable to connect to the network, it gets stuck in searching and i don't know why?. I am using an eSIM card from iBasis and i am trying to connect over LTE-M or NB-Iot to the californium server, but it just gets stuck.

Note: The modem hasn't been doing this in the past, it just started getting stuck some days ago until now

Can someone please help me .

Fullscreen 2021-11-04T10_28_46.368Z-log.txt Download

2021-11-04T10:28:46.891Z INFO Application data folder: C:\Users\tcheced\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2021-11-04T10:28:46.971Z DEBUG App pc-nrfconnect-linkmonitor v2.0.0 official
2021-11-04T10:28:46.971Z DEBUG App path: C:\Users\tcheced\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2021-11-04T10:28:46.971Z DEBUG nRFConnect 3.8.0 is not supported by the app (^3.8.0)
2021-11-04T10:28:46.971Z DEBUG nRFConnect path: C:\Users\tcheced\AppData\Local\Programs\nrfconnect\resources\app.asar
2021-11-04T10:28:46.971Z DEBUG HomeDir: C:\Users\tcheced
2021-11-04T10:28:46.971Z DEBUG TmpDir: C:\Users\tcheced\AppData\Local\Temp
2021-11-04T10:28:50.873Z INFO Modem port is opened
2021-11-04T10:28:55.793Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-11-04T10:28:55.807Z DEBUG modem << Flash regionsDomainPermissions
2021-11-04T10:28:55.811Z DEBUG modem << 00 01 0x00000 0x10000 Securerwxl
2021-11-04T10:28:55.814Z DEBUG modem << 02 31 0x10000 0x100000 Non-Securerwxl
2021-11-04T10:28:55.815Z DEBUG modem << Non-secure callable region 0 placed in flash region 1 with size 32.
2021-11-04T10:28:55.859Z DEBUG modem << SRAM regionDomainPermissions
2021-11-04T10:28:55.862Z DEBUG modem << 00 07 0x00000 0x10000 Securerwxl
2021-11-04T10:28:55.866Z DEBUG modem << 08 31 0x10000 0x40000 Non-Securerwxl
2021-11-04T10:28:55.868Z DEBUG modem << PeripheralDomainStatus
2021-11-04T10:28:55.872Z DEBUG modem << 00 NRF_P0               Non-SecureOK
2021-11-04T10:28:55.879Z DEBUG modem << 01 NRF_CLOCK            Non-SecureOK
2021-11-04T10:28:55.881Z DEBUG modem << 02 NRF_RTC0             Non-SecureOK
2021-11-04T10:28:55.888Z DEBUG modem << 03 NRF_RTC1             Non-SecureOK
2021-11-04T10:28:55.890Z DEBUG modem << 04 NRF_NVMC             Non-SecureOK
2021-11-04T10:28:55.897Z DEBUG modem << 05 NRF_UARTE1           Non-SecureOK
2021-11-04T10:28:55.900Z DEBUG modem << 06 NRF_UARTE2           SecureSKIP
2021-11-04T10:28:55.905Z DEBUG modem << 07 NRF_TWIM2            Non-SecureOK
2021-11-04T10:28:55.908Z DEBUG modem << 08 NRF_SPIM3            Non-SecureOK
2021-11-04T10:28:55.913Z DEBUG modem << 09 NRF_TIMER0           Non-SecureOK
2021-11-04T10:28:55.918Z DEBUG modem << 10 NRF_TIMER1           Non-SecureOK
2021-11-04T10:28:55.920Z DEBUG modem << 11 NRF_TIMER2           Non-SecureOK
2021-11-04T10:28:55.922Z DEBUG modem << 12 NRF_SAADC            Non-SecureOK
2021-11-04T10:28:55.930Z DEBUG modem << 13 NRF_PWM0             Non-SecureOK
2021-11-04T10:28:55.931Z DEBUG modem << 14 NRF_PWM1             Non-SecureOK
2021-11-04T10:28:55.933Z DEBUG modem << 15 NRF_PWM2             Non-SecureOK
2021-11-04T10:28:55.934Z DEBUG modem << 16 NRF_PWM3             Non-SecureOK
2021-11-04T10:28:55.939Z DEBUG modem << 17 NRF_WDT              Non-SecureOK
2021-11-04T10:28:55.943Z DEBUG modem << 18 NRF_IPC              Non-SecureOK
2021-11-04T10:28:55.948Z DEBUG modem << 19 NRF_VMC              Non-SecureOK
2021-11-04T10:28:55.950Z DEBUG modem << 20 NRF_FPU              Non-SecureOK
2021-11-04T10:28:55.958Z DEBUG modem << 21 NRF_EGU1             Non-SecureOK
2021-11-04T10:28:55.968Z DEBUG modem << 22 NRF_EGU2             Non-SecureOK
2021-11-04T10:28:55.970Z DEBUG modem << 23 NRF_DPPIC            Non-SecureOK
2021-11-04T10:28:55.971Z DEBUG modem << 24 NRF_REGULATORS       Non-SecureOK
2021-11-04T10:28:55.980Z DEBUG modem << 25 NRF_PDM              Non-SecureOK
2021-11-04T10:28:55.981Z DEBUG modem << 26 NRF_I2S              Non-SecureOK
2021-11-04T10:28:55.986Z DEBUG modem << 27 NRF_GPIOTE1          Non-SecureOK
2021-11-04T10:28:55.987Z DEBUG modem << SPM: NS image at 0x10000
2021-11-04T10:28:55.988Z DEBUG modem << SPM: NS MSP at 0x2001e3a0
2021-11-04T10:28:55.989Z DEBUG modem << SPM: NS reset vector at 0x147f1
2021-11-04T10:28:55.991Z DEBUG modem << SPM: prepare to jump to Non-Secure image.
2021-11-04T10:28:56.215Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-11-04T10:28:56.227Z DEBUG modem <<  CoAP/UDP sample started..
2021-11-04T10:28:56.230Z DEBUG modem << Verbindung zum LTE-Netz wird hergestellt
2021-11-04T10:28:56.234Z DEBUG modem << Das kann ein paar Minuten dauern..
2021-11-04T10:28:56.355Z DEBUG modem << Mit LTE-Netz verbunden
2021-11-04T10:28:57.540Z DEBUG modem << +CEREG: 2,"63AE","01A3F802",7
2021-11-04T10:28:57.555Z DEBUG modem << LTE veränderte Zelle: Zelle ID: 27523074, Tracking area: 25518
2021-11-04T10:28:57.557Z DEBUG modem << Active LTE Modus: LTE-M

BR,

Cedric

[Håkon Alseth]

Hi,

 

I had a chat with our local sales director in your area. If you have a iBasis, it should roam towards Telefonica, which should be reported back with mcc/mnc 262 03. The reception can be spotty in some areas, so you should consider getting a Arkessa sim in addition, which roams towards other network providers as well.

 

If you log into nrfcloud, you should be able to see the status of your SIM card in the cloud view, under "sim cards" - could you check if this still shows that you have data left?

 

Kind regards,

Håkon

[ced27]

Håkon Alseth said:

I had a chat with our local sales director in your area. If you have a iBasis, it should roam towards Telefonica, which should be reported back with mcc/mnc 262 03. The reception can be spotty in some areas, so you should consider getting a Arkessa sim in addition, which roams towards other network providers as well.

Thanks for your suggestions.

Håkon Alseth said:

If you log into nrfcloud, you should be able to see the status of your SIM card in the cloud view, under "sim cards" - could you check if this still shows that you have data left?

i still have like 0.22Mb left. Here is a screenshot:

Do you think is because of that? if yes, what can i do, buy Data i suppose?

[Håkon Alseth]

Hi,

 

It seems that you're out of data, yes. You can buy more if you click the "buy data" button.

 

Kind regards,

Håkon

[ced27]

Håkon Alseth said:

It seems that you're out of data, yes. You can buy more if you click the "buy data" button.

Hi Håkon Alseth,

i have found that my modem get stuck in searching not because i am out of data. Despite the fact that I bought some data,  i still got the same issue. What do you think will be the appropriate solution?

As soon as i get a connection to the server and that a DTLS handshake has been done and my payload was sent, the connection to the server will then be stopped and the cycle continuous. How can i make sure, that the connection to server stays?

Best regards,

Cedric

[Håkon Alseth]

Hi,

 

ced27 said:

i have found that my modem get stuck in searching not because i am out of data. Despite the fact that I bought some data,  i still got the same issue. What do you think will be the appropriate solution?

As soon as i get a connection to the server and that a DTLS handshake has been done and my payload was sent, the connection to the server will then be stopped and the cycle continuous. How can i make sure, that the connection to server stays?

Is this due to the network connectivity, or the connection to the server?

Is the communication still unstable with other samples, like mqtt_simple?

 

Kind regards,

Håkon