Microsoft resolves Always On VPN connectivity issues following September 2026 Windows 11 updates
Patch restores remote access for affected systems; no security vulnerability identified
Key Takeaways
- Microsoft fixed Always On VPN connection failures on Windows 11 following September 2026 security updates.
- The issue caused loss of remote access but was not a security vulnerability or actively exploited.
- A fix was released, likely via cumulative update or support guidance, with specific KB details unspecified in reporting.
- Affected users should apply the fix to restore VPN connectivity.
Quick answers
- What happened?
- Microsoft has issued a fix for Always On VPN connection failures experienced by Windows 11 users after installing the September 2026 security updates. The issue resulted in lost remote access but was determined to be a connectivity problem rather than an exploited vulnerability.
- Which products are affected?
- Windows 11
- What should defenders do?
- A fix has been released by Microsoft. Affected Windows 11 users should ensure their systems are updated to the latest cumulative update or follow official support guidance to restore VPN functionality.
Microsoft has resolved a known issue that caused Always On VPN connection failures after the installation of the September 2026 Windows 11 security updates. Affected users were unable to establish or maintain VPN connections, disrupting remote access for systems configured with Always On VPN. The company released a fix, likely delivered via a cumulative update or support guidance, to restore VPN functionality. Microsoft confirmed that there is no evidence of active exploitation of the underlying VPN issue; the problem was a connectivity failure caused by the update, not a security vulnerability. The fix status has been confirmed as resolved, though specific KB article or update IDs were not provided in the source reporting. The incident pertains to Windows 11 systems with Always On VPN configured that applied the September 2026 security updates.
Security Details
The issue was a connectivity failure caused by the September 2026 Windows 11 security updates, resulting in Always On VPN connection losses. No security vulnerability or active exploitation was identified.
Affected products
Windows 11
Mitigation
A fix has been released by Microsoft. Affected Windows 11 users should ensure their systems are updated to the latest cumulative update or follow official support guidance to restore VPN functionality.
Sources
BleepingComputer
Microsoft fixes VPN issues caused by September Windows updates
Oct 14, 2026 · 14:27
Original link
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