AT+CESQ signal strength 255 (unknown) yet connection works great

[GJSea]

Hi,

In order to determine signal strength we parse the AT+CESQ response and regularly get +CESQ: 99,99,255,255,255,255 (the final number being the strength), but the connection and connectivity is perfectly fine. Is there a reason 255 is returned for the strength even though all connectivity is good?

Thanks! 

[Carl Richard]

Hi!

To me it sounds like your device is not actually connected to the network when CESQ is queried. The problem in this ticket was due to PSM being used, so I would appreciate if you could open a new ticket on the matter as it's somewhat unrelated. 

I cannot see anything out of the ordinary in your prj.conf, but I guess this behavior is more related to the program flow of the application.

Best regards,
Carl Richard