IKEv2 and Error 812 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.”
VPN Error 812 is a connection problem in the VPN which is related to Routing and Remote Access Service (RRAS), which is responsible for executing routing protocols. RRAS is a Microsoft API and server software, therefore this error only appears on Windows OS like Windows 10, Windows 8/8.1 and Windows 7.
This error may occur after the April Windows Update or as a solution to an issue between the client network and the policy server (NPS). This is usually the complete error message vpn 812: The connection was prevented due to a reasonable policy configured on your vpn/dial-up web hosting server.
An ever-changing primary DNS at the domain operator and setting up a secondary DNS on an external server (in this case primary DNS 8.8.8.8) fixes the problem. If this is the case, you will definitely have problems with error 812. If this is the case, here are some additional links to all the other common configuration problems:
If random 812 errors appear, this indicates a possible transmission problem with the nps server. This may seem counterintuitive, but if the VPN server cannot connect to the NPS server, it returns an appropriate error (812). I finally watched it. Hi uploading Richard, I have Server 2016 with some RRAS and Server 2019 with some NPS.
Reboot the device, follow the steps to analyze the changes, and test IKEv2. Error 809: The market connection between your computer and this VPN server cannot be active because the remote server is not responding.
How do I fix Error 812 VPN?
As clearly stated in the post, the error is related to this RAS/VPN forum policy configuration. Before trying anything else, you may want to resolve the issue by restarting the RRAS server. Otherwise, wait about an hour and reconnect your personal VPN.
Why is azure point to side VPN error 812?
(Error 812) Communication. was prevented due to a procedure configured on your RAS/VPN server. In particular, the authentication method used by the public server to verify your username, and therefore your password, may not be the same as the authorization method configured in your UPVC connection profile.
Why is there an error 812 on my VPN?
Error 812: The connection was denied due to a policy configured on your ras/vpn server. In particular, the authentication method used by the server to verify your current username and password may not be in addition to the authentication method configured in each connection profile.
How to fix VPN error 812?
As the message gets closer, the error is related to some kind of policy configuration of the RAS/VPN internet hosting server. Before trying anything else, you can resolve the issue by essentially restarting the RRAS server. Alternatively, you can wait about an hour and match your VPN.
Why do I get error 812 on my VPN?
You can also get error 812 if the VPN server is Windows and the trust and domain are lost. Because of this condition, when the VPN patient comes in, the server cannot find the user in the domain.

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.