| | Re: Having problems with halo 2 vista live. Any Help?
One option is to port forward, although what to portforward I do not know. Second is add an exception to your firewall to Halo 2's exe to prevent it from blocking it. Three re-install the game. Forth is any more options above or below.
Edit: Halo 2 has private servers hosted by people not from 343i or Bungie.