The VPN connection (pptp) is successful. Pinging is possible. Remote Desktop is not successful (the authentication window appears but afterwards it hangs). Looks like a firewall issue (no problems before with windows server 2003 R2) so i tried opnening port 3389 for the public profile also (under which profile does a VPN connection categorize?) but to no avail. Please help on this issue! Windows Server 2008 R2 Standard There's NAT to access the internet (the isp provides you with a router that has one public IP and the server is behind this router).

Hi, Thank you for your post here. What operation system is running on problematic remote desktop client? Do the issue happen on other remote desktop client (Windows XP, Windows Vista)? If you have the issues on the Windows XP client, you may check how it works if you disable the Credential Manager by setting DisableDomainCreds to 1. Key Location: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\LsaValue Name: DisableDomainCreds Value Type: REG_DWORD Values: 0 or 1 Default Value: 0 Description: A setting of 0 allows domain credentials to be stored in the Credential Manager, a value of 1 has the meaning of 'do not store domain credentials'. If you have any questions or concerns, please do not hesitate to let me know.

Thanks for the reply, but this problem is across OSes. It also appears in Vista and Windows 7. On the internal network everything runs fine on the same computer. It's through the vpn that i can't use remote desktop.