RUTM51 Cellular connection does not work after firmware upgrade to RUTM_R_00.07.13.1

Hi,

after firmware upgrade, the cellular connection (inserted one SIM card) stopped to work. SIM card state changing from Inserted to Not inserted repeatedly.
It is brand new router. When I downgraded firmware to RUTM_R_00.07.12.3, it started to work.
I tried reset config already, but without success.

Greetings,

Thank you for reaching out.

Just to clarify, when downgraded to previous firmware version 7.12.3, the settings were automatically reset.

Could you confirm whether the device was hard or soft rebooted after upgrading to firmware 7.13.1? Additionally, could you try replicating the described behavior and provide screenshots from the Status → System and Status → Network pages?

Please ensure that any private or sensitive information (public IP, S/N, MAC, etc.) is hidden before sharing the screenshots.

Kind regards,

Yes, after downgrade, config was reset.
I tried reset config after upgrade to the latest version too.
Also I tried reboot router by webUI and disconnecting the power supply too.
There is no diferrence, when I set mobile connection to 4G only.

Screenshots:











Thank you for your update.

To investigate your issue more effectively, I have sent a form to your email address (the one used for forum registration). Please complete the form using 12788 as the ticket ID. Once submitted, we will contact you privately to assist you further.

Kind regards,

Hi.
I have the same issue! Looking forward for solution!
Regards

Hello @Virumaalt,

This issue was already known to our R&D, and it should be fixed with the 7.13.2 FW release soon.

Please upgrade your device’s RutOS firmware to 7.13.2 when it becomes available and let me know if the issue persists.

Kind regards,