Error Codes Wan005 and Wan002

I have two home internet accounts and I'm wondering if it's a device issue. The grey cylinder one works fine and the black box one keeps having the issue this thread is about. The app won't even connect to it anymore even being on the wifi of the router. It's not an internet issue for me as the TV and phone connect just fine. But if I try to use the app or ethernet to a mesh wifi it stops working. If I plug other ethernet devices they connect to the internet. The Indian tech support is not helpful. And the app did not do an upgrade of firmware. 

Uninstalling and reinstalling the app and doing the setup again for the device connects the app but still no ethernet port for my mesh wifi but other ethernet devices connect just fine. Mesh being deco m5 which works fine with the grey cylinder home internet.