I have a Windows Server 2003 box setup as the Domain Controller for a Windows Domain Network. It has 2 NICs one of which is currently unused. I've followed the configuration instructions detailed by a number of sources:
- How to install and configure a Virtual Private Network server in Windows Server 2003
- Configure a Windows Server 2003 VPN on the server side
However, every time I add another role to the server to function as a VPN server, user logins take minutes to authenticate with the domain. In addition,the VPN connection works but DNS lookups fail when connected over VPN an an IP address must be used to resolve to individual boxes. I'm sure I must be doing something wrong, but I can't figure out what that is.