http://developers.de/blogs/damir_dobric/archive/2008/12/20/vpn-issue-with-pptp-and-windows-vista.aspxI have been using VPN connection on Windows Vista since very early CTP version of Vista. All worked fine till today. Without of any plausible reason, the VPN has stopped working. I spent probably four hours of my life to fix this. Honestly I spend fourenCommunityServer 2008 SP1 (Build: 30619.63)