Microsoft Updates Trigger VPN Connection Failures on Windows 10 and 11

Microsoft confirms that its latest Windows 10 and 11 security updates are causing widespread VPN connection failures. The company is investigating the issue and advises affected users to uninstall the updates as a temporary workaround.

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Waqas Arain
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Microsoft Updates Trigger VPN Connection Failures on Windows 10 and 11

Microsoft Updates Trigger VPN Connection Failures on Windows 10 and 11

Microsoft confirms that its latest, connection security updates for Windows 10 and 11 are causing widespread Virtual Private Network (VPN) connection failures for users. The problematic updates, released in April 2024, were intended to enhance system performance and security but have instead led to significant VPN issues.

Why this matters: The widespread impact of these VPN connection failures highlights the critical role that secure remote access plays in today's increasingly digital world, where remote work and online transactions are becoming the norm. The widespread impact of these VPN connection failures highlights the critical role that secure remote access plays in today's increasingly digital world, where remote work and online transactions are becoming the norm. The incident also emphasizes the importance of thorough testing and responsible deployment ofsoftware updates to prevent disruptions to critical services.

The affected updates include KB5036893 for Windows 11 versions 23H2, 22H2, and 21H2, and KB5036892 for Windows 10 versions 22H2 and 21H2. Multiple versions of Windows Server, from 2008 to 2022, are also impacted. Microsoft acknowledges the problem on its known issues page, stating,"Windows devices might face VPN connection failures after installing the update dated April 9, 2024, or later."

The VPN connection failures specifically affect connections using TPM-backed certificates, commonly employed for enhanced privacy and security, particularly on public Wi-Fi networks. Users report receiving error messages indicating that a certificate could not be found for use with the Extensible Authentication Protocol.

As a temporary workaround, Microsoft advises affected users to uninstall the problematic updates. However, the company warns that removing the updates also removes the fixes for patched security vulnerabilities, potentially exposing systems to risks. Home users are urged to use the Windows Get Help app for assistance, while business customers should consult the "Support for Business" portal.

Microsoft is actively investigating the VPN connection failures and states that it is "working on a resolution and will provide an update in an upcoming release." However, no specific timeline has been provided for when a fix will be available, leaving users uncertain about when they can expect a resolution.

This is not an isolated incident, as Windows updates have previously caused issues with VPN connections, including slow speeds, connection failures, and other related problems. The current situation highlights the importance of thorough testing before releasing updates to the public and the need for clear communication and prompt resolutions when issues arise.

In addition to the VPN connection failures, the KB5036893 update has also introduced a bug that prevents users from changing their account profile pictures, triggering error code 0x80070520. Despite Microsoft's efforts to address this issue, it remains unresolved in the subsequent KB5036980 update released on April 23.

As Microsoft continues its investigation and works on a resolution, affected users must weigh the risks of uninstalling the problematic updates against the potential security vulnerabilities they may face without the latest patches. Until a fix is released, enabling a VPN's kill switch feature, which disconnects the internet connection if the VPN fails, can help maintain privacy and security in the interim.

The widespread impact of these VPN connection failures highlights the critical role that secure remote access plays in today's increasingly digital world. As more people rely on VPNs for work, education, and personal use, it is essential that software updates prioritize compatibility and stability alongside performance and security enhancements. While Microsoft's acknowledgment of the issue and commitment to finding a resolution are positive steps, the company must also focus on preventing similar problems from occurring infuture updates.

Key Takeaways

  • Microsoft's April 2024 updates cause VPN connection failures on Windows 10 and 11.
  • Affected updates include KB5036893 for Windows 11 and KB5036892 for Windows 10.
  • VPN connections using TPM-backed certificates are specifically affected.
  • Uninstalling the updates is a temporary workaround, but removes security patches.
  • Microsoft is investigating and working on a resolution, but no timeline is provided.