Setting up server, error

[Rebirth]

Here you will find everything you need ; http://support.microsoft.com/kb/814550
I guess you didn't forwarded 2302:UDP.
also don't forget to take a look on your firewall if it still cries around that you cannot connect after forwarding the ports.
You can connect without forwarding the ports as well, then it's a lan server. But connecting is a real pain this way, I've tried it. You have to refresh the server page in FL so long until you get anything different then your MAC address as server address. EG: you have "My disco server: fe98:5435:2523:3242: NO" it should look like :
"My disco server: 76.67.555.555: NO" <- your IP. <- dis after forwarding ports

You can find your IP here -> http://www.whatismyip.com/

Without forwarding port it should be the internal address , e.g. : 192.168.1.1 (last digit can vary)

Hope this helps if you have any else questions you can add me on skype and I'll take a look into