RUTX50 internal modem unstable after RG520 modem firmware update – SIM failure, gsmctl N/A, no registration

[Leigh]

Looks like the same issue here

RUTM30 modem problem after FW update

Hello, I am experiencing a persistent internal modem problem on a RUTM30 which started immediately after a modem firmware update. Before the modem update the router was working normally. I got sometimes notification that the intern modem is unreachable (unexpected shutdown) The issue persists after factory reset and clean configuration. System firmware: RUTM_R_00.07.20.3 Modem firmware: RG520NEBDCR03A05M4G Sim card is working (tried it in my phone) i also tried instead a Esim→didn’t work M…

here

RUTC50 — no mobile internet connection after firmware + modem update: PIN state flipping

Greetings, For troubleshooting purposes, we will require more sensitive information from your end, such as the troubleshoot file, which may contain passwords, public IP addresses, serial numbers, and such. To avoid leaking this information, we have sent you a form to fill out, which you will receive in your e-mail inbox that you have registered your account with in the forums. In the Ticket ID field of the form, please enter the ID of this thread, which is 18500. Best Regards, Justinas

and here

RUTC50 Modem issue since Update - Mobile 5GMM reject cause: N1 mode not allowed

Internal Modem issues since Update. Yesterday was everything fine… I did the update in the evening… Today every hour the modem is not working. Sometimes everything fine after restarting, sometimes after looking minutes recovering. Since switch back to 4G (12:00) no problems anymore. Switched back to 5G, immediately Disconnected with: “Mobile 5GMM reject cause: N1 mode not allowed” Network O2 Germany - Reported to carrier —> No current issues known. [IMG_0003] [IMG_4821] …

all of them got issues after a ModemUpdate.