Unable to Connect, I dont know why

Hi,

Something has happened and my home assistant now just says Unable to Connect…?

I use duckdns and now browsing to my normal url does not work

I am running a virtual install on windows and have reset modem and pc.

Looking at router its still on the same ip and I can access the files from windows explorer by browsing \ip addrerss… I just can view front end…

How can I debug this?

Resolved.
My modem had dumped all port forwarding settings, Grrr.
Piece of crap Dodo (Go Hub) HG659