I think my Netduma is broken and its having a lot of issues

[Suliman]

Hi I recently noticed that my Netduma keeping on disconnecting the devices connected to it, when I checked the router, its showing no networks, I have to phyiscally move the cable around on the router to make it work again, the other issues, I cannot see my devices no more on the device manager list, like the screenshot below, so I am not able to use filter, I tried to hard reset, factory reset, with no hope, I think there is a serious issue in the device, with sad expection, my last R1 I bought 10 years ago works fine, but this new version is not as expected !