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Why do I get error 812 on my VPN?

Why do I get error 812 on my VPN?

Posted on November 5, 2022

Always On VPN error code 812 indicates an authentication policy mismatch between the client and the server. This often occurs when, for example, the server is configured to use Protected Extensible Authentication Protocol (PEAP), but the client is configured to use Microsoft CHAP Version 2 (MS-CHAP v2).

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 can also appear after the April Windows Update or as a result of a problem between clients and the Network Policy Server (NPS). Here is the full VPN error message 812: Tandem was denied because one of the options is configured on your RAS/VPN server.

When deploying Windows 10 Always On Administrators vpn, 691, or 812, it may be difficult to establish a new VPN connection. There are many types of configuration issues that fix these errors. For example, they can occur if TLS 1.0 was previously disabled on the RRAS server if it was installed on servers prior to Windows Server 2016.

Table of Contents

  • How do I fix Error 812 VPN?
  • Why is azure point to side VPN error 812?
  • Why is there an error 812 on my VPN?
  • How to fix VPN error 812?
  • Why do I get error 812 on my VPN?

How do I fix Error 812 VPN?

As you can see from the clear message, the error might be related to the policy configuration on the RAS/VPN server. Before investigating anything else, you can resolve the issue by restarting the RRAS service. Otherwise, wait about an hour and reconnect the VPN.

Why is azure point to side VPN error 812?

(Error 812) The connection was actually prevented because a policy was changed on your RAS/VPN server. In particular, the authentication method used by the Internet to verify and change your identity may not match the authentication formula configured in your connection profile.

Why is there an error 812 on my VPN?

Error 812: Reporting was disabled due to the plan configured on your RAS/VPN server. In particular, the authentication method used by the server to validate and authenticate your password may not match the authentication method configured in your login set.


How to fix VPN error 812?

As you can see from the message, the error is related to the ability to configure the RAS/VPN server policy. Before trying anything else, you can resolve the critical issue by restarting the RRAS service. Otherwise, wait about an hour to reconnect to the VPN.

Why do I get error 812 on my VPN?

You can also get error 812 if the VPN server was Windows and has lost trust with the domain. When the VPN client comes to the server, it cannot find the user in the internet domain due to this condition.

Ermias

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.

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