Mudi e750 - sim card not registered

Hi, I have a problem with GL-Mudi - e750 with EP06-E Module. The sim card worked for a month without problems but now the modem says: sim card not registered. I tried the sim card in my phone and USB modem and it works perfectly fine. Apn is also set correctly.

Router Mudi e750
Modem: EP06-E
Firmware: 3.217

I tried:
Modem reset
AT+QPRTPARA=3
IMEI change

Without success

Any idea what to do ?

Reset router to factory default settings

Resetting to factory didn’t help. I also tried another sim card from the same and another operator and the same problem Sim card not registered. I tried the new sim in the phone and USB modem its works

Firmware Version: 4.3.8 stable for Mudi is available now to download

https://dl.gl-inet.com/?model=e750

Hi there,

I have the same problem and I’m wondering if you ever resolved it. I've tried all the steps you suggested: updating the firmware, resetting the router, and nothing seems to help. Any advice would be greatly appreciated.

Thanks!

Hey

Was it resolved somehow? I have the same issue with SIM card registering

Used a new esim for the first time.
Followed the manual using the QR code scan:

Enabled the added profile.

On the "Internet" section first it showed "SIM card not registered Connecting... Some SIM cards...", after a reboot eventually it showed "Connecting... Some SIM cards...". But still nothing.
Only after clicking "Auto setup" again and waited it worked...

For a first time user the process seems to be a bit confusing tbh.