Hello all. We have Windows Server2003 on servers, windows xp on clients, protected by a watchguard firebox x550. VPN users authenticate to Firebox, not AD. I am trying to setup pptp-vpn on a new laptop, which has Windows 7 Pro. Here is what happens. I go outside the office, login to Windows laptop with the domain username and password. Then I fire up PPTP-VPN, login with the vpn username/password (leaving domain blank). VPN Login goes through fine, I can see and ping servers by name and by IP. However, when I try to browse to the network drives, it says username not found. I tried logging in with a different VPN/username, still the same thing. Not only that, but since that vpn/username matched a username on the domain, it actually locked that domain (not VPN) username out after a few clicks (group policy for domain users is set to 3 times the wrong password locks the account). So somehow, when I connect via PPTP-VPN on a Windows 7 laptop, the PPTP login overwrites the windows login. PPTP connection is setup with domain blank, and the box "Use windows domain/login" unchecked. The same PPTP-VPN, on a Windows XP laptop works fine, does not have that issue. Any thoughts would be appreciated.

Hello, Thank you for your question. I am trying to involve someone familiar with this topic to further look at this issue. There might be some time delay. Appreciate your patience. Thank you for your understanding. Best Regards, Miya Yao TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

M_Kou, What version of the Watchguard VPN client are you using? Also, do you see the same behavior if you enable the DisableDomainCreds registry key? This will not prevent you from logging into the system locally using cached credentials. HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Lsa Value Name: DisableDomainCreds Value Type: REG_DWORD Value: 1 Regards, Clark Satter Microsoft Online Community Support Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.