Microsoft's latest Windows update breaks VPN connectivity
The latest Windows security update (KB5036893, released on April 9) has been found to contain a bug that prevents users from connecting to virtual private networks (VPNs), as confirmed by Microsoft. The company has posted a statement warning, “Windows devices might face VPN connection failures after installing the April 2024 security update (KB5036893) or the April 2024 non-security preview update.”
The following platforms have been listed as being affected:
Client: Windows 11, version 23H2; Windows 11, version 22H2, Windows 11, version 21H2, Windows 10, version 22H2, Windows 10, version 21H2.
Server: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008.
The issue was first reported by a Reddit user who faced this error message when attempting to connect to VPNs with TPM backed certificates: “A certificate could not be found that can be used with this Extensible Authentication Protocol.”
While Microsoft has said that it’s working on a fix that will be rolled out in the next update, in the meantime, the only workaround for anyone facing this issue is to uninstall the security update and revert to the previous OS version.
Incidentally, a similar bug had cropped up exactly one year ago with the April 2023 update, which created speed issues with L2TP/IPsec VPN connections over Wi-Fi on Windows 11.
Source(s)
