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. 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.
The following procedure resolves error: 789 when configuring L2TP over IPsec on Windows 10. “Error: 789, An attempt to connect using l2tp stopped because the security layer encountered a serious processing error during initial negotiations with the host”, 1. Open suggestions from the administrative control panel tools.
Step 1: Go to Device Manager on your PC. Step 2: Expand the Network Adapters node, right-click Network Command Prompt, and select Uninstall Device. Step Three: Click Remove. Step 4: Restart your computer. You will see that the PC and Windows will automatically receive the driver for the network. Then connect to the VPN to visit when the “L2TP network attempt failed” error is resolved.
This error occurs when your plan is not properly configured to restore the L2TP server, such that the connection attempt fails before the client has even connected to the server. This is certainly also due to the bad operating system configuration of your system, as in this case Windows 10.
How do I fix Error 800 789 L2TP and setup VPN in Windows 7?
Fixed: Windows 7 error 900 (L2TP client over IPsec cannot connect)
- In Windows 7, go to VPN connection properties and click Security.
- Select L2TP/IPSec as the VPN type and click Advanced.
- Select “Use shared key for authentication” and click “OK”.
How do you fix the L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer?
Right-click the added “VPN” connection and select “Properties”. Right-click VPN and select Properties. Click on the “Security” tab and activate the “Allow these protocols” system. …Try connecting to a VPN and see if the problem persists.
How do I fix Error 789 L2TP?
So if you encounter VPN error 789, you might want to restart your computer first and try to fix the VPN again. If most of the errors don’t appear, you have some kind of solved problem.
How do I fix Error 789 l2tp?
How to Fix VPN Error 789
- Restart the VPN network adapter.
- Check some certificates.
- Enable the IPsec service again.
Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.