This is hard to search for…
I have a Lede-OpenWRT/Sierra MC7455 router, things hum along for 24 hours or so, then I lose network.
When I minicom into the AT Command port and run commands, I don’t get the OK/ERROR echos any more, I get numbers. Like:
which responds with a carriage return (no line feed) that overwrites the AT, like
(The number 0). If there’s an error, I get codes, like “4”.
If I do an AT!RESET, everything comes back fine, I get my OKs and ERRORs and I’m good for another 24 hours or so.
I do send/receive AT commands pretty regularly, like AT!GSTATUS?, and maybe something is getting garbled and I send the wrong AT command to put it in this state? Is there an AT command to get this kind of state, and another to bring it back without doing a reset?