Windows 11 updates are breaking VPN access to WSL

Microsoft has issued a warning that updates to Windows 11 may have led to problems with networking via VPN in Windows Subsystem for Linux. The problem sees the appearance of “No route to host” errors when using mirrored networking mode. Microsoft has not provided an exhaustive list of the third-party VPNs that are experiencing problems, but highlights Cisco Secure Client and OpenVPN. Problems started with the KB5067036 update from October, but also exists in updates released after this. In an update to release notes, Microsoft warns of the known issue, saying that “Mirror networking on Windows Subsystem for Linux might… [Continue Reading]