Sorry for the screenshots being in german.


  • Server: Windows Server 2016
  • Client: Windows 10 Pro

My goal:

  • Running a VPN Service on the Server
  • Connecting to it from the client

What I've done:

I've added the DirectAccess and VPN (RAS) feature.

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Then I've enabled Routing and RAS.

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Then I've enabled Dial in for the Administrator

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Here is a proof of not having any restrictions to the connections.

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My clients setup and my try to connect.

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The remote-connection has been declined because of the username and password being invalid or a not valid selected authentication-protocol for the RAS-server.

Remote-access eventlog

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The user Administrator, which established a connection with 87.xxxxxx failed to authenticate: The connection has been refused due to the configured policies on the RAS/VPN-server... username and password invalid or authentication-protocols are not matching with the one configured in the connection-profile.

I can to 100% say that the credentials are correct. I even copied them out of notepad to be sure not having any typos in it. By the way I dont know whats ment with auth-protocol in the connection-profile. Which connection-profile?

Can anyone tell me whats wrong with this?


Weird error message and also weird solution. I've set an IP-range (IPv4) to the RAS for the clients and the connection imediately worked.

Special thanks to ruNN0r for his solution which I've found here.

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