Wireless Joint

No, the service is 3 (Europe).

My rooter always loose internet connection every 3 or 4 hours, LTE signal is up but I have to restart the wwan interface. I made tons of different setups: OpenWRT and Rooter in QMI and MBIM mode also with ModemManager. I tested also voltages and I see that are always over 3500 mV.

Now I really don ...

No but I'm trying now.

I have exactly the same problem with my ZBT-WE826 + Sierra EM7455, every 3-4 hours it looses internet connection and I have to restart wwan. I tried Rooter, OpenWRT, MBIM and QMI mode and also ModemManeger but the problem is always the same. I don't think that can be hardware related because Volts ...