Recent Windows 11 security updates have led to VPN connectivity issues, especially affecting enterprise users utilizing Windows Subsystem for Linux (WSL). The problem involves specific updates causing virtual network interfaces to fail ARP requests, impacting VPN applications like Cisco Secure Client and OpenVPN. #Windows11 #WSL #VPN #CiscoSecureClient #OpenVPN
Keypoints
- Security updates KB5067036 and KB5072033 cause VPN networking failures for some Windows 11 users.
- The issue primarily affects enterprise VPN solutions and users leveraging mirrored mode networking in WSL.
- VPN virtual interfaces fail to respond to ARP requests, leading to “No route to host” errors in WSL environments.
- Home users on Windows Home or Pro editions are unlikely to experience this connectivity issue.
- Microsoft is investigating the problem but has not yet provided a fix or workaround.