RayC

I now use the LTE3316-M604 in IP pass throught mode, and connect a Asus router that supports Merlin and setup this script ( https://github.com/MartineauUK/Chk-WAN ) to monitor the WAN status and reset the WAN. That will be great if LTE3316-M604 can just add the fucntion to monitor the WAN and restore.

I have the same problem, it just randomly drop connection. If it connecting on LTE-A mode it happen more offten, so I set it to connect to single band now, it help a bit. there should something need to be fixed in the firmware.