http://blogs.msdn.com/albertoe/archive/2006/09/03/738097.aspxSince I am on the road quite often I need to VPN into the internal network while I am out and I have noticed that if I start the Virtual PC host software on my machine prior to establishing the VPN connection my guest PC can't connect to the internalen-USCommunityServer 2.1 SP1 (Build: 61025.2)