I also have LIMSRV on RM520N-GL but with LTE network.
Could you please share how to log collect to catch issue during RRC registration in the network?
If it is possible in router part…
May be you can provide recommendation how to try to solve the issue…
If you have LTE network, it is different case. If you have commercial network, it may be better return to auto MBN selection.
I don’t think it router part, but try to check if APN set correctly on modem with command:
In the past we have router, that transfer “IPV4V6” instead of “IP”, and this also was a problem.
We are developing our 5G SA BS, so we use many different modes of operations, that currently new at all, and may be not present in modem firmware.
The LIMSRV may have very many reasons, so my case isn’t yours at all.
For my case i need Quectel team to look on my QXDM logs, and help me with this.
To collect QXDM logs, you need Quectel QLog tool, or dedicated debug USB port from the modem.
If you don’t have dedicated USB port, you need QLog compiled and installed on router. Also, Quectel tool for windows, to collect the QXDM logs.
And for log analyze, you need QXDM tool.