Unexpected LTE connection drops

Hello,

We are experiencing an issue with LTE connection using QUECTEL Mobile Broadband Module. After router reboot or administrative interface reset connection works properly. Signal strength reported as excellent and there are no any problems with usage for time period of ~6-8 hours. But after this time period interface comes down and does not reconnect again.

Some technical info:
Router model - Mikrotik RBM11G
Router firmware - mt7621L version 7.3.1
LTE Module - QUECTEL Mobile Broadband Modul
Revision - EC25EUGAR06A05M4G

If you need some additional info or logs please provide us instructions how to collect it properly.

Hello, I found that the firmware version you are using now is from 2019. Here is the new firmware version, and I found from the update log that part of the network connection problem was repaired. Please send me your email address, I will send it to you, you can try to upgrade it.