Two recent Windows updates contain some bug fixes and improvements. But at the same time, some users reported that these two updates break their VPN connection. This is a VPN bug.

When you try to connect to a VPN on your computer, the attempt may fail with an error message as follows:

Can’t connect to VPN. The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer.

This issue mainly affects the built-in Windows VPN client when connecting to Ubiquiti Client-to-Site VPN, SonicWall, Cisco Meraki, and WatchGuard Firewalls.

 

Read the full article here: https://www.minitool.com/news/microsoft-fixes-windows-update-vpn-problem.html

 

If you’ve been impacted by this update or experiencing a similar issue, Contact Us.