Error with VPN Connection

Question

Hello
I am trying to set up a VPN connection from a Windows 11 Home computer into a Windows Server Essentials Server.
I get the error message.
The connection was prevented because of a policy on your RAS/VPN server. Specifically the authentication method used by the server to verify your user name 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.
Anything to do with the certificate?
Any assistance greatly appreciated!

Answer 1

It may be as simple as...

1. Windows-R to get the run box
2. Key in "ncpa.cpl"
3. Right-Click on the icon that matches your VPN connection.
4. Click on Properties
5. Under the Security Tab, click on "Allow these protocols"
6. Check the MS-Chap V2
7. Click on "OK"

Answer 2

Hi,

Thank you for your question and for reaching out.

I understand that you're having issues setting up a VPN connection. The error you got is mostly caused by the server side. To resolve them, kindly try any or all of the steps below:

1] Set up the External DNS

• In the Windows Search Box, type ‘ncpa.cpl’ and press ‘Enter’
• This will take you to see the ‘network connections’
• Right-click on the VPN connection that you are currently using and click ‘Properties’ from the option
• Change the ‘Primary DNS’ to ‘Domain Controller’
• Now set up the External DNS by accessing the Secondary DNS
• Alter the range of the Primary DNS to ‘8.8.8.8’
• Check and apply the settings and restart your VPN

Now check if the VPN error is fixed.

2] Check the Tunnel Type Settings

• Obtain the ‘L2TP OR PPTP’ value by selecting ‘Tunnel Type’ Condition as the additional value
• Now hit ‘Apply’ and close the ‘Network Policy’
• Try connecting the VPN client
• Revert the Network Policy to the ideal value for ‘Tunnel Type’ Condition, here it is “PPTP” only.
• Select ‘Apply’ and close the ‘Network Policy’

Now try connecting your VPN client. The above steps should have set your network policy, confirming that the VPN works properly.

3] Contact your Network Administrator

Sometimes, VPN Error 812 can occur due to inadequate access rights.

In such a situation, you are advised to contact your network administrator. Ask them to update your permissions and ensure all protocols and network authentication permissions are correct.

4] Contact your VPN Provider

When none of the above fixes work, the best possible thing is to contact your VPN Provider. Every VPN developer has a list of the most common issues affecting their products; hence in most cases, they will understand the issue and have a corresponding solution.

If the reply was helpful, please don’t forget to upvote or accept as answer, thank you.