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Join Date: Nov 2010
Location: -
Posts: 11

Problem in Connecting to VPN

I have run into a problem in my VPN accounts. I am providing VPN service on my VPS (Windows based service), and it's been a few hours I am getting the following error for PPTP and L2TP connections:

for L2TP it is:

The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer. (Error 789) For customized troubleshooting information for this connection, click Help.

For PPTP the error is (Error 806): a connection between your computer and the VPN server has been established but the VPN connection cannot be completed. The most common cause for this is that there is at least one internet device between your computer and the VPN server is not configured to allow GRE protocol packets Verify that protocol 47 GRE is allowed on all personal firewall devices or routers. if the problem persists, contact your administrator.

I can ping the VPS from my location.
I have tested two VPS with same VPN application, I am getting the same error message.

Any suggestions how I can solve this?

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