Windows 7 PPTP VPN not using VPN DNS servers
Posted on 2011-11-01
We have a small branch office with a Windows 2003 server setup there. It is running RRAS with a simple PPTP VPN setup.
It works just fine, and users are able to connect to it just fine using Windows XP.
However, we have one user there with Windows 7 at their home. They can connect just fine but even if I manually set the DNS servers for their PPTP connection the windows 7 machine will continue to try and use the local ISP at their house for DNS resolution (in this case resolver.qwest.net).
I have done my own 5 minutes of research and found some mention of changing the linkage subkey in the registry and making sure the NDIS\WanIP is at the top of the order and/or the GUID for the PPP adapter is at the top. I did this, but still no luck.
Use Default Gateway on Remote Network has been checked and unchecked, and almost all of the TCP/IP settings have been messed with to see if anything helps. No luck.
ping and browsing after connecting to the VPN by IP works just fine, it's just that the client refuses to use the DNS servers at the office once connected.
I've also tried doing nslookup and setting the server to one of the DNS servers at the branch office and querying but I get "server failed" on any query.
Any help is appreciated. If EE can't figure this one out I'll just open a ticket with MS and let them deal with it.