Windows 7 PPTP VPN Local Domain Authentication

Here’s a hidden gem. When connecting to another site domain via Windows PPTP (Yeah I know it’s no longer secure). Windows will lose connectivity to the local domain and might even cause an account lockout as Windows will attempt to use VPN credentials on local domain and will fail authentication often without a prompt.

There’s a hidden setting in the .pbk file that prevents credentials from being overwritten.

The file is located in C:\Users\<USERNAME>\AppData\Roaming\Microsoft\Network\Connections\Pbk

* Open the file in Notepad.
* Change UseRasCredentials=1 to UseRasCredentials=0
* Save file and reconnect VPN

And that’s it. Now even with the gateway being redirected all local authentications will continue to work.

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