This is a new thread for exactly the same issue at ISSUE-97387 that was discussed some seven years ago back in 2017 (which doesn't accept new contribution). Kindly please drop your ideas on how to resolve the issue.

Are there any newer firmware version to re-flash (Middle-East Edition)?

Also today I faced a strange issue, the web admin interface now loads something like the firmware binary dump in the GUI (but surprisingly the modem is staying connected still!!)