I have some problems to make a VPN connection from Windows 7 Clients to VPN Server with ISA 2006. My Windows XP, IPHONE's and another kind of VPN clients make a right VPN connection, but Windows 7 doesn't work. I tried with both protocols (PPTP & L2TP) but doesn't work. Our infrastructure have this specifications: Domain .- Two DC both with W2K8 Server SP2, update with all fixes. ISA Server .- Windows 2003 R2 SP2, update with all fixes. .- ISA Server 2006 standar SP2, update with all fixes. Clients: .- 45 Desktop Windows XP SP3 .- 23 Desktop Windows 7 Pro SP2 .- 15 Laptop Windows XP SP3, those computers work fine like VPN Clients .- 6 IPHONE IOS 5.1, those cellphone work fine like VPN Clients. .- 5 Windows Mobile 6.5 Phones, those cellphone work fine like VPN Clients. .- 6 Laptop Windows 7 Pro SP2, those computers doesn't work like VPN Clients When I tray to connect Windows VPN Cliente with L2TP protocol display Error 789 and Error 691 with PPTP protocol. Awaiting for your reply soon..! Regards Danilo Ortiz MCT, MSCE & MCSA.

Hi Jeremy Thanks for your message: 1. What VPN Client do you use, the built-in one or third-party ones?, We use Built-in (Windows XP & Windows 7) 2. Was there any error message when the connection failed?, Display a message with Error 691 "The remote connection was denied because the user name and password combination you provided is not recognized, or the selected authentication protocol is not permitted on the remote access server." This error only ocurr when I Tray connect from Windows 7, in fact when I tray from Windows XP the connection is succesfull. Awaiting for your reply soon..! Regards Danilo Ortiz MCT, MSCE & MCSA. Danilo Ortiz MCT, MCSE & MCP