@Kevin_Z 

Thanks for your reply. 

That's the thing, when the exclamation point appears sometimes the connection is ok but very slow and other times noninyernet at all. Checked on the app and it just say some decos are/could be experiencing problems.

It's almost like the connection is being choked. The only other thing is that we are running a vpn "Express vpn" on the mail PC. But like I said in the first post it's worked like this for a good while. 

I have restarted the decos one by and until now n ok exclamation point...