I’ve been having problems for a while now with a Q2686 (and whatever is in the new Fastrak Xtend) losing network registration. Its hard to pin down as it happens very rarely, maybe every few months. A reboot recovers the situation, but I’d rather not go there.
Whatever it is that’s happening, my OpenAT app is fine and all appears normal. But the modem is no longer registered (no flashing light and AT+CREG=0,0). Before I reboot it, does anyone have any ideas what might be going on, or what I might be able to do in my app to catch this ‘event’ and recover automatically.
Ideally i’d like to prevent it from happening at all. Failing that, presumably I could periodically check CREG in my app and invoke some kind of automatic recovery.
The modem doesn’t seem inclined to re-acquire the network on its own.
On the most recent occasion, the device in question had been dormant for several months (no calls or texts). On other occasions the devices in question have been very busy. Is it possible that the network could give up on a subscriber that makes either too few or too many calls/texts.
Any help much appreciated.