Dear @Mehrdad,
Thanks for testing with other APNs. I couldn’t find however much information on the current error you’re getting on my side. Could you please run mmcli -G DEBUG and then retry the whole procedure? This will increase the number of log messages and we may run into more useful information on what could be causing the error. Maybe we could then spot something more conclusive.
Also, could you please also try passing the pin with simple-connect with something like: mmcli -m 0 --simple-connect=“apn=live.vodafone.com,pin=0000”?
Best regards,