Ok so i tried Doom 3 with XBConnect. I refound my console on XBConnect. I picked the room. pressed Join and a new window opened up and apparently i joined the game. then In in system link, i pressed find game but it repeatedly said "no game found". How do i Fix this

Make sure you dont have a firewall blocking XBC, also make sure that you dont have any filters set up , it's more than likely the firewall however since it's not showing up on the xbox