I've broken my config after celluar network outage

Installing and Using OpenWrt
1

I've been using my set up for about a month now. I learned everything from scratch so I'm not great at troubleshooting yet. I've been troubleshooting for about 8 hours now and could really use some help!

I'm using Quectel RM520N-GL in BPI-R4 on OpenWrt 24.10. The local cell tower had some outages this week and after it came back online, my modem wouldn't reconnect (state = disabled). The first time it eventually connected after rebooting the modem (AT+CFUN=1,1) many times. The same happened again this morning and it would not reconnect. I had installed mwan3 package earlier this week but not configured it - maybe this is the cause of not reconnecting? I've now removed the package.

My existing modemmanager interface reads:

Protocol: ModemManager
RX: 0 B (0 Pkts.)
TX: 0 B (0 Pkts.)
Error: Unknown error (MM_3GPP_OPERATOR_REGISTRATION_FAILED)

In the Luci interface the RM520N-GL is not detected, but I can see that it is detected and visible on /dev/ttyUSB2.

I tried adding a new qmi interface and configured it in /etc/config/network but it also will not connect. From AT commands I can see that I do have sufficient cellular connectivity so this is not the issue (sim card also connects in another device).

2

Updated to add:

After more reboots, the modem is now not detected by modemmanager or qmi protocol, but I can still communicate with it by luci-app-atcommands so it is not disconnected.

3

Simplest way would be to snoop config from rooter firmware and replivate with openwrt.

op reg failed means you ate your qota, probably dozen sms-es warned you already.

4

I have unlimited data and I’ve confirmed that the sim will connect in another device, so not that.

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