Hello, I have a problem connecting the BG77 module to the network. When I try to connect to the Vodafone network here in the Czech Republic using the command at+cops=1,0,“Vodafone CZ”,9, nothing happens and after some time I get cme error 30. The strange thing is that if I deactivate and immediately reactivate the IoT sim on the Vodafone web platform and send an at command to connect, the device connects almost instantly within 1 second. But after some time, usually seconds or minutes, it disconnects itself again and I am again not able to connect until I do the same thing - go to Vodafone platform, deactivate the sim card and activate it again. I tried to contact the Vodafone, but they just said there is no need to activate the SIM, should be already activated and also said that there is no reset forced by their network, so it has to be problem with my device. I am attaching the at communication. Thank you very much for any help.
[2023-09-13_22:06:50:819]RDY
[2023-09-13_22:06:54:085]
[2023-09-13_22:06:54:085]APP RDY
[2023-09-13_22:06:59:957]AT
[2023-09-13_22:07:18:996]OK
[2023-09-13_22:07:36:973]AT+CPIN?
[2023-09-13_22:07:36:973]+CPIN: READY
[2023-09-13_22:07:36:973]OK
[2023-09-13_22:07:53:530]AT+QCFG=“nwscanseq”
[2023-09-13_22:07:53:530]+QCFG: “nwscanseq”,0203
[2023-09-13_22:07:53:530]OK
[2023-09-13_22:08:09:420]AT+QCFG=“nwscanseq”,03
[2023-09-13_22:08:09:420]OK
[2023-09-13_22:08:27:607]AT+QCFG=“nwscanseq”
[2023-09-13_22:08:27:607]+QCFG: “nwscanseq”,0302
[2023-09-13_22:08:27:607]OK
[2023-09-13_22:08:40:943]AT+QCFG=“iotopmode”
[2023-09-13_22:08:40:943]+QCFG: “iotopmode”,1
[2023-09-13_22:08:40:943]OK
[2023-09-13_22:08:59:854]AT+QCFG=“band”
[2023-09-13_22:08:59:854]+QCFG: “band”,0x0,0x100002000000000f0e189f,0x10004200000000090e189f
[2023-09-13_22:08:59:854]OK
[2023-09-13_22:09:18:779]AT+QCFG=“band”,0x0,0x0,0x80000
[2023-09-13_22:09:18:779]OK
[2023-09-13_22:09:35:257]AT+CGDCONT=1,“IPV4V6”,“”
[2023-09-13_22:09:35:272]OK
[2023-09-13_22:09:48:844]AT+CFUN=1
[2023-09-13_22:09:48:844]OK
[2023-09-13_22:10:45:912]AT+COPS=?
[2023-09-13_22:14:34:957]+COPS: (1,“Vodafone CZ”,“Vodafone”,“23003”,9),(0,1,2,3,4),(0,1,2)
[2023-09-13_22:14:34:957]OK
[2023-09-13_22:14:44:430]AT+COPS=1,0,“Vodafone CZ”,9
[2023-09-13_22:16:55:973]+CME ERROR: 30
//this is after I deactivated and activated the SIM on Vodafone platform
[2023-09-13_22:19:18:811]AT+COPS=1,0,“Vodafone CZ”,9
[2023-09-13_22:19:20:629]OK
[2023-09-13_22:19:37:698]AT+QPING=1,“8.8.8.8”
[2023-09-13_22:19:37:698]OK
[2023-09-13_22:19:38:337]
[2023-09-13_22:19:38:337]+QPING: 0,“8.8.8.8”,32,622,255
[2023-09-13_22:19:38:526]
[2023-09-13_22:19:38:526]+QPING: 0,“8.8.8.8”,32,190,255
[2023-09-13_22:19:39:106]
[2023-09-13_22:19:39:106]+QPING: 0,“8.8.8.8”,32,575,255
[2023-09-13_22:19:39:246]
[2023-09-13_22:19:39:246]+QPING: 0,“8.8.8.8”,32,149,255
[2023-09-13_22:19:39:246]+QPING: 0,4,4,0,149,622,384
[2023-09-13_22:22:54:180]
[2023-09-13_22:22:54:180]+QIURC: “pdpdeact”,1
[2023-09-13_22:23:03:356]AT+QPING=1,“8.8.8.8”
[2023-09-13_22:23:03:356]OK
[2023-09-13_22:23:03:356]+QPING: 561
[2023-09-13_22:26:02:340]AT+QNWINFO
[2023-09-13_22:26:02:340]+QNWINFO: No Service
[2023-09-13_22:26:02:340]OK