http://blogs.msdn.com/buckh/archive/2006/10/16/understanding-port-configuration-for-team-build.aspxEtienne Tremblay , a Microsoft MVP, put up a nice Visio diagram showing the ports used by Team Build and the direction that must be opened for each. Check it out! Team build the ins and outs So we learn stuff everyday... well I hope. Here is a bit ofen-USCommunityServer 2.1 SP1 (Build: 61025.2)