Which ports are required to play Stronghold Crusader online?
These ports will only work only for DirectPlay not Gamespy.
Gamespy 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 refer to your firewall or router documentation for details on opening or forwarding the ports