Which ports are used by Stronghold 2 for multiplayer games?
Stronghold 2 uses the following ports : 19966.
In addition it also uses the following ports for Gamespy
If you are behind a firewall/proxy and are able to change its settings, Arcade needs the following TCP ports open in order to function:
3783 (Voice Chat Port)
27900 (Master Server UDP Heartbeat)
28900 (Master Server List Request)
29900 (GP Connection Manager)
29901 (GP Search Manager)
13139 (Custom UDP Pings)
6515 (Dplay UDP)
6500 (Query Port)
Please consult your router or firewall documentation for details on opening or forwarding these ports.