Random L2TP connection problem for server 2008 R2

I had a strange problem with a L2TP VPN connection to a Server 2008 R2.  Some systems on some networks can not connect successfully.  Nothing is recorded on the Server 2008 R2 box.  I see traffic from our firewall to the box, but it does not complete the configuration of the tunnel.

For example, I have a laptop that I can't connect from my home, but can from other locations.  I have a second laptop that connect to my house without any problem.  I saw this question on at least 5 computers.  Until I can fix this, I have to keep my Server 2003 running VPN so that users have a back fall VPN to connect to.

Error 789: The L2TP connection attempt failed because the security layer met a processing error during initial negotiations with the remote computer

Hi Mike,.

The question you posted would be better suited in the TechNet Forums. I would recommend posting your query in the TechNet Forums.

http://social.technet.Microsoft.com/forums/WindowsServer/en-us/home?category=WindowsServer

Browse this link which has useful information about the error message that you receive.

http://blogs.technet.com/b/rrasblog/archive/2009/08/12/troubleshooting-common-VPN-related-errors.aspx

Hope this could help you.

Tags: Windows

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