Need to do 1 of 2 things:
Put your (make sure it is your internal ip) PC into the DMZ.
----------OR----------------
Forward the following ports:
6073~6073 UDP
2302~2303 TCP
You also need to make sure that all firewall programs (including built in protections on your router) are turned off...
You may notice (on some routers), that there are tick boxes for "Allow WAN Ping Requests", they must be enabled. There are also "Allow anonymous Ping Requests" (or something to that effect) there as well.... All Ping requests must be allowed.
The first time you run SFC3 after disabling all this stuff, it will still count down, as it it trying your internal ip first (192.168.0.xx)
After the 1st 90 secs, it tries your EXTERNAL ip, This should allow you to connect. If it STILL doesnt connect, you have a setting on your router the still needs disabled.
PLEASE NOTE: You CANNOT be in the DMZ and Forward Ports at the same time.... It confuses 99% of the routers out there.
If you want to play this on GameSpy Arcade you will also need to open the following ports:
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:
* 6667 (IRC)
* 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)
It says to open only the TCP ports, but I suggest that you open BOTH protocols (TCP, UDP)
<S>, hope it helps