Here's a little more detail about this "Error 721" problem I'm having with our VPN connection. Host: DC1 on BellSouth T1 - Win2000 Server running RRAS with 5 PPTP tunnels. BellSouth T1 behind SMC firewall (or MultiTech firewall) confured to pass TPC 1723 to DC1 Users: Steve: (notebook) WinXp Pro on BellSouth DSL- connects fine, can map and use all network resources. Steve: (desktop) WinXp Home on BellSouth DSL- connects fine, can map and use all network resources. GA home offices: Laura: WinXp Home on BellSouth DSL - connects fine one time early morning, can map and use all network resources. After disconnecting she can't connect again until next day. All subsequent attempts fail with Error 721. I sent a notebook running Win2000 Pro home with Laura and it connects perfectly. John: WinXp Home on BellSouth DSL - connects fine, can map and use all network resources. Freddy: WinXp Pro on BellSouth DSL - All attempts fail with Error 721. TX office: Matt, Keith, and Paul: WinXp Pro: Occasionally can connect once in morning. All subsequent attempts fail with Error 721 Server: Win2000 Pro: Connects fine every time, can map and use all network resources. All client PCs are configured the same (verified). All client PCs could connect fine to NT4, SP6 server running similarly configured RRAS at our old office. Possibilities: T1 issues - BellSouth has run extensive tests on our T1 and found no problems. We also have no problems running other apps over the T1 (browsing and email, remote access to other sites, FTP and web hosting). DSL problems - I have asked the users to have their DSL lines tested, but the fact that Win2K machines connect OK indicates the probllem is not with connectivity. Xp - Well, yeah, but what? And why only in some cases and not all?