windows 10 is blocking this site

using windows 7, it works, using my iPhone (safari) I can reach it, but my desktop computer with windows 10 is not allowing this site to show, I get "Not Found" (both firefox and edge)
using a VPN service I can reach this site.
but why would windows 10 block vbforums.com and how to fix this?
I have tried:
reset, flush, unblock restrictions, hosts, firewalls and to check a bunch of settings

but nothing, still the same.
right now Im using this free VPN service to login and post this message.