VPN error 812 on Windows 2012 R2 - Resolution with screenshots

Situation: The client just created a VPN on their Windows 2012 R2. They can telnet port 1723. However, the VPN client receive this error: 812: The connection was prevented because of a policy configured on your RAS/VPN server. Specifically, the authentication method used by the server to verify your username and password may not match the authentication method configured in your connection profile. Please contact the Administrator of the RAS server and notify them of this error.

Troubleshooting: 1. If we enable Allow dial-in on the properties for the user, he can establish the VPN.

2. This is NPS issue. Open NPS and navigate to Policies Network Policies to change the Access type to Allow access.

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