Just to clear things up before I get to the problem:

1. I have checked upnp and port/firewall/AV for anyproblems with that

2. Even tested using brand new Windows install on same internet

3. Tried reinstalling, switching dlls, even compiling my own from the svn

 

So heres the problem:

 

I can only view non-US servers. For some odd reason my FD1 only displays EU and other non-US servers, It used to work (minus a few servers here or there missing), but the all of a sudden now I can't view any US servers.

 

Any help would be much appreciated

2. Even tested using brand new Windows install on same internet

You should know what the problem is by now...

The router's firewall, as in most cases.