Originally posted by bansheedude17:

We'll give it a shot. I'm assuming dedicated non crossplay server is the pretty standard one right? I don't remember seeing the words dedicated but I'll check tonight. We typically just click start server and don't click cross play since we're all using steam anyway

I just assumed a dedicated server (not the normal game running, just a smaller process without any GUI).
Dunno if it works with only VH clients (with one being the server) and this I cant test.

I tried what I said in my OP by un-/blocking my VH's and dedicated servers internet access (Windows Firewall Control[www.binisoft.org]).
Can't test that with a normal game because I've got only one copy of VH...