LTE Network detected, but can't connect. (iBasis, Swisscom)

My thingy:91 does not connect to the LTE network. However it does detect the Swisscom network (Switzerland) and shows it as available.

I did:

  • update the modem with mfwnrf9160123.zip
  • update the firmware with thingy91_ltem_2021-03-04_8e8c6089.hex

The Case is similar to this: Case ID: 24046.

Do you have a solution for this?

I use the provided iBasis SIM which should be supported in Switzerland.

Here is my log:

2021-05-02T13:40:58.020Z INFO Application data folder: C:\Users\pirzi\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2021-05-02T13:40:58.097Z DEBUG App pc-nrfconnect-linkmonitor v1.1.10 official
2021-05-02T13:40:58.098Z DEBUG App path: C:\Users\pirzi\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2021-05-02T13:40:58.098Z DEBUG nRFConnect 3.6.1 is supported by the app (^3.6.0)
2021-05-02T13:40:58.098Z DEBUG nRFConnect path: C:\Users\pirzi\AppData\Local\Programs\nrfconnect\resources\app.asar
2021-05-02T13:40:58.098Z DEBUG HomeDir: C:\Users\pirzi
2021-05-02T13:40:58.098Z DEBUG TmpDir: C:\Users\pirzi\AppData\Local\Temp
2021-05-02T13:40:58.145Z VERBOSE Could not fetch serial number for serial port at COM3
2021-05-02T13:40:58.145Z VERBOSE Could not fetch serial number for serial port at COM4
2021-05-02T13:41:03.559Z INFO Modem port is opened
2021-05-02T13:41:03.571Z DEBUG modem >> AT+CFUN?
2021-05-02T13:41:03.610Z DEBUG modem << +CFUN: 1
2021-05-02T13:41:03.614Z DEBUG modem << OK
2021-05-02T13:41:03.638Z DEBUG modem >> AT+CGSN=1
2021-05-02T13:41:03.649Z DEBUG modem << +CGSN: "352656101118654"
2021-05-02T13:41:03.651Z DEBUG modem << OK
2021-05-02T13:41:03.655Z DEBUG modem >> AT+CGMI
2021-05-02T13:41:03.668Z DEBUG modem << Nordic Semiconductor ASA
2021-05-02T13:41:03.671Z DEBUG modem << OK
2021-05-02T13:41:03.675Z DEBUG modem >> AT+CGMM
2021-05-02T13:41:03.685Z DEBUG modem << nRF9160-SICA
2021-05-02T13:41:03.689Z DEBUG modem << OK
2021-05-02T13:41:03.693Z DEBUG modem >> AT+CGMR
2021-05-02T13:41:03.700Z DEBUG modem << mfw_nrf9160_1.2.3
2021-05-02T13:41:03.703Z DEBUG modem << OK
2021-05-02T13:41:03.705Z INFO Nordic Semiconductor ASA nRF9160-SICA [mfw_nrf9160_1.2.3] SerNr: 352656101118654
2021-05-02T13:41:03.707Z DEBUG modem >> AT+CEMODE?
2021-05-02T13:41:03.718Z DEBUG modem << +CEMODE: 2
2021-05-02T13:41:03.722Z DEBUG modem << OK
2021-05-02T13:41:03.735Z DEBUG modem >> AT%XCBAND=?
2021-05-02T13:41:03.750Z DEBUG modem << %XCBAND: (2,3,4,8,12,13,20,28)
2021-05-02T13:41:03.756Z DEBUG modem << OK
2021-05-02T13:41:03.770Z DEBUG modem >> AT+CMEE?
2021-05-02T13:41:03.778Z DEBUG modem << +CMEE: 0
2021-05-02T13:41:03.781Z DEBUG modem << OK
2021-05-02T13:41:03.788Z DEBUG modem >> AT+CMEE=1
2021-05-02T13:41:03.795Z DEBUG modem << OK
2021-05-02T13:41:03.802Z DEBUG modem >> AT+CNEC?
2021-05-02T13:41:03.812Z DEBUG modem << +CNEC: 0
2021-05-02T13:41:03.814Z DEBUG modem << OK
2021-05-02T13:41:03.820Z DEBUG modem >> AT+CNEC=24
2021-05-02T13:41:03.827Z DEBUG modem << OK
2021-05-02T13:41:03.833Z DEBUG modem >> AT+CGEREP?
2021-05-02T13:41:03.842Z DEBUG modem << +CGEREP: 0,0
2021-05-02T13:41:03.850Z DEBUG modem << OK
2021-05-02T13:41:03.857Z DEBUG modem >> AT+CGDCONT?
2021-05-02T13:41:03.868Z DEBUG modem << OK
2021-05-02T13:41:03.871Z DEBUG modem >> AT+CGACT?
2021-05-02T13:41:03.878Z DEBUG modem << OK
2021-05-02T13:41:03.886Z DEBUG modem >> AT+CGEREP=1
2021-05-02T13:41:03.893Z DEBUG modem << OK
2021-05-02T13:41:03.901Z DEBUG modem >> AT+CIND=1,1,1
2021-05-02T13:41:03.908Z DEBUG modem << OK
2021-05-02T13:41:03.913Z DEBUG modem >> AT+CEREG=5
2021-05-02T13:41:03.923Z DEBUG modem << OK
2021-05-02T13:41:03.928Z DEBUG modem >> AT+CEREG?
2021-05-02T13:41:03.939Z DEBUG modem << +CEREG: 5,4,"FFFE","FFFFFFFF",7,0,0,"00000000","00000000"
2021-05-02T13:41:03.941Z DEBUG modem << OK
2021-05-02T13:41:03.953Z DEBUG modem >> AT%CESQ=1
2021-05-02T13:41:03.959Z DEBUG modem << OK
2021-05-02T13:41:03.968Z DEBUG modem >> AT+CESQ
2021-05-02T13:41:03.980Z DEBUG modem << +CESQ: 99,99,255,255,255,255
2021-05-02T13:41:03.985Z DEBUG modem << OK
2021-05-02T13:41:03.999Z DEBUG modem >> AT%XSIM=1
2021-05-02T13:41:04.006Z DEBUG modem << OK
2021-05-02T13:41:04.010Z DEBUG modem >> AT%XSIM?
2021-05-02T13:41:04.017Z DEBUG modem << %XSIM: 1
2021-05-02T13:41:04.019Z DEBUG modem << OK
2021-05-02T13:41:04.026Z DEBUG modem >> AT+CPIN?
2021-05-02T13:41:04.039Z DEBUG modem << +CPIN: READY
2021-05-02T13:41:04.042Z DEBUG modem << OK
2021-05-02T13:41:04.055Z DEBUG modem >> AT+CPINR="SIM PIN"
2021-05-02T13:41:04.069Z DEBUG modem << +CPINR: "SIM PIN",3
2021-05-02T13:41:04.071Z DEBUG modem << OK
2021-05-02T13:41:04.076Z DEBUG modem >> AT+CIMI
2021-05-02T13:41:04.086Z DEBUG modem << 204080813560221
2021-05-02T13:41:04.088Z DEBUG modem << OK
2021-05-02T13:41:04.090Z INFO IMSIdentity: 204080813560221
2021-05-02T13:41:05.391Z DEBUG modem << %CESQ: 31,1,3,0
2021-05-02T13:41:05.415Z DEBUG modem << +CEREG: 2,"0849","0104AF06",7,0,0,"11100000","11100000"
2021-05-02T13:41:05.430Z DEBUG modem << [00:00:20.034,637] [0m<inf> asset_tracker: LTE cell changed: Cell ID: 17084166, Tracking area: 2121[0m
2021-05-02T13:41:05.432Z DEBUG modem << +CSCON: 1
2021-05-02T13:41:05.434Z DEBUG modem << [00:00:20.069,488] [0m<inf> asset_tracker: RRC mode: Connected[0m
2021-05-02T13:41:06.394Z DEBUG modem << +CNEC_ESM: 29,0
2021-05-02T13:41:06.408Z DEBUG modem << +CNEC_EMM: 19
2021-05-02T13:41:06.421Z DEBUG modem << +CEREG: 2,"0849","0104AF06",7,0,19,"11100000","11100000"
2021-05-02T13:41:07.620Z DEBUG modem << %CESQ: 31,1,8,1
2021-05-02T13:41:07.642Z DEBUG modem << +CSCON: 0
2021-05-02T13:41:07.652Z DEBUG modem << [00:00:22.291,381] [0m<inf> asset_tracker: RRC mode: Idle[0m
2021-05-02T13:41:07.788Z DEBUG modem << +CEREG: 2,"0849","0100B904",7,0,19,"11100000","11100000"
2021-05-02T13:41:07.798Z DEBUG modem << [00:00:22.433,593] [0m<inf> asset_tracker: LTE cell changed: Cell ID: 16824580, Tracking area: 2121[0m
2021-05-02T13:41:08.002Z DEBUG modem << %CESQ: 31,1,2,0
2021-05-02T13:41:21.122Z DEBUG modem << %CESQ: 26,1,0,0
2021-05-02T13:41:30.460Z DEBUG modem >> AT+COPS=?
2021-05-02T13:42:02.362Z DEBUG modem << +COPS: (1,"","","22801",7)
2021-05-02T13:42:02.368Z DEBUG modem << OK
2021-05-02T13:42:02.383Z DEBUG modem >> AT+COPS?
2021-05-02T13:42:02.390Z DEBUG modem << +COPS: 0
2021-05-02T13:42:02.392Z DEBUG modem << OK
2021-05-02T13:42:25.748Z DEBUG modem << %CESQ: 31,1,2,0

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