VPN Error 789 on Windows 7/8/10 FIX [Tutorial]
46VPN Error 789 on Windows 7/8/10 FIX [Tutorial]
DWord Value: AssumeUDPEncapsulationContextOnSendRule
Most of us use VPNs to stay unidentified and protected when surfing the web, while these software’s are great, they come with certain limits. Very often, Internet users encounter various issues while trying to use this safe connection, and regardless of what operating system you are using, there is a great possibility of encountering several VPN errors codes. Today, the error in recognition is VPN Error 789.
The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer.
VPN Error 789 is one of the most common errors which occurs when a user attempts to connect to L2TP. Here, the L2TP connection attempt failed because the security layer encountered a processing error initial negotiation with the remote computer.
One of the possible reasons this error may occur is when you establish a client session by using Windows 2000 Terminal Services. Or when your system is not configured to connect to the L2TP server correctly. Other possible causes for this are usually:
L2TP based VPN client (or VPN server) is behind NAT.
Wrong certificate or pre-shared key is set on the VPN server or client
Machine certificate or trusted root machine certificate is not present on the VPN server.
Machine Certificate on VPN Server does not have ‘Server Authentication’ as the EKU
If you’re using a VPN, and get prompted with the Windows 10 VPN error 789 that states: “The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer” the causes may be within your system.
This error pops up when your system is not properly set up to connect to an L2TP server, thus the connection attempt fails even before you establish a connection with the server.
It is also linked to incorrect configuration of your operating system like Windows 10 in this case. This generic error is thrown when the IPSec negotiation fails for the L2TP/IPSec connections.
This tutorial will apply for computers, laptops, desktops,and tablets running the Windows 10, Windows 8/8.1, Windows 7 operating systems.Works for all major computer manufactures (Dell, HP, Acer, Asus, Toshiba, Lenovo, Samsung).