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After the April 2018 Update, some users complained about the VPN Error 812. It is possible that this has something to do with problems between clients and the Net Promoter Score (NPS). Unlike many other issues that came with the April 2018 Update, very few users encountered this VPN error code. However, just because this is an uncommon problem, it does not mean that it cannot be resolved. In this article, we will show you some useful fixes for VPN Error 812.

Why do I Get 812 Error Using VPN on Windows 10?

So, you might be wondering, “Why do I get 812 error using VPN on Windows 10?” Well, to answer that question and to get rid of the problem, let’s take a closer look at the error code. Here is the complete VPN Error 812 notification:

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.

Possible Reasons Why the VPN Error 812 Appears

  • This error code can show up when the Client Connection Profile and the Server Network Policy do not match the Authentication Protocol. You can fix this issue using one of our solutions below.
  • Some situations are more complicated. For instance, the error code may appear when the value added has not been updated to ‘Tunnel Type’ Condition in the Network Policy. In this scenario, when the user tries to connect to their VPN client, the Tunnel Type only has a ‘PPTP’ value, causing the error 812 to show up.

If you want to learn how to bypass VPN Error 812, make sure you try our methods below.

Method 1: Setting up the External DNS

If you encounter the VPN Error 812, the first thing you have to do is change the Primary DNS to Domain Controller. Once you’ve done that, you can access the Secondary DNS to set up the External DNS. Now, you have to modify the range of the Primary DNS to 8.8.8.8. Save the settings, then restart your VPN.

Method 2: Checking the Tunnel Type Settings

If the first solution does not work for you, you can try these steps:

  1. Obtain the ‘L2TP OR PPTP’ value by selecting ‘Tunnel Type’ Condition as the additional value.
  2. Click Apply, then close the Network Policy.
  3. Try connecting the VPN client.
  4. Bring back the Network Policy to the ideal value for ‘Tunnel Type’ Condition.
  5. Select Apply, then close the Network Policy.
  6. Connect your VPN client. The steps should have set your Network Policy, ensuring that the VPN client functions properly.

Method 3: Contacting your Network Administrator

It is possible that the Error 812 is showing up because you do not have sufficient access rights. If this is the case, the safe solution would be to contact your network administrator, asking them to update your permissions. You have to ensure that all protocol and network authentication permissions are accurate.

Method 4: Contacting your VPN Provider

If the previous solution still does not get rid of the error, you should try contacting your VPN service provider. They most likely understand the issue, and they probably have a corresponding solution for it.

Pro Tip: A lot of people use VPN services to ensure that their activities online are secured and are not monitored. If you want another layer of protection for your computer, we suggest installing Auslogics Anti-Malware. This tool detects threats and attacks you’d never suspect existed. What’s more, it is designed not to interfere with your main anti-virus. So, you can have the maximum protection you need for your computer.

Can you suggest other workarounds for the VPN Error 812?

Let us know in the comments below!