Hosting/Connecting Issue.
 

A while back I built a new computer, and ever since I have been unable to host for the few remaining BlitzPigs that still have '46 installed.

We (try to) connect via direct IP, as we used to do before I built this box, but it's no good. Anyone connecting just times out.

I've looked at my router (did not change that) and my anti-virus program, I've set permissions, etc... but still no go.

I probably have missed a tick box in settings somewhere, but I'll be darned if I can figure it out.

Any help would be greatly appreciated.

Running windows 7 Pro, just as I did before.

Host needs to open port 21000 UDP and assign it to the local host machine ipV4 address ie: 192.168.1.xx