HL7800-M Registration Denied

IoT Modules HL78
1

I have HL7800-M module, it connected to Catm1 on my private LTE network about 2 weeks ago, but just didn’t connect to the Cat-m1 network today. I am using a Test SIM card which has worked before.
AT+COPS=?
ERROR
AT+COPS?
+COPS: 0

OK

I am testing in band 8, the UE is not sending any RACH request as observed from the enb logs.

What could be wrong?

Thanks,
Abi

2

Hi @abiodun,

  • Have you checked EPS network registration status? Please share the response from yours?

at+cereg?

+CEREG: 1,1

OK

  • Pls use below command to enable Report Mobile Termination Error then share your error code from at+cops=?

at+cmee=1

We have a note for AT+COPS=? It is only available when the device is not in RRC Connected state (when it still has data to transmit or receive). AT+COPS=? will return ERROR if the device is in RRC Connected state. To ensure that the device is not in RRC Connected state, the device can be explicitly detached from the network using AT+CGATT=0, for example.
Please share any concerns you have and help us tick Solution if your problem is solved
Thanks

3

Thanks,

the explicit detach command resolved the issue