Using EVK-N2 with SARA-N211 NB-IoT module.
When I turn on the device, I got response "+CEREG: 0,2" to command "AT+CEREG?", so I am unable to send UDP packets with an error: No network service.
After a while which can be a few hours i get response "+CEREG: 0,5" and then I can successfully send an UDP packet, but when i restart the module I have the same problem again.
What should I do to connect to network right after powering on the module to be able to send UDP packets?