
Windows 11 KB5124008 VPN Bug: Always On VPN Fails After Update
By CyberUpdates365 Technical Desk | Published: September 11, 2026 | Last Updated: September 11, 2026 Quick Answer: What is the KB5124008 VPN Bug? The Windows 11 KB5124008 update breaks certificate-based Always On VPN tunnels due to a client-side IPsec authentication regression. The only confirmed recovery is uninstalling KB5124008 and rebooting. Microsoft has not yet issued ... Read more




















