Latest Windows Update Has Borked VPN Use on All Versions
upstart writes:
April updates for Windows 10 and 11 break some VPN software, Microsoft says:
Microsoft is currently investigating a bug in its most recent batch of Windows 10 and Windows 11 updates that is preventing some VPN software from working properly. The company updated its list of known Windows issues to say that it has recreated the issue on its end and that it's currently working on a fix.
The VPN issue affects all currently supported versions of Windows: Windows 10 21H2 and 22H2; Windows 11 versions 21H2, 22H2, and 23H2; and Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019, and 2022.
Microsoft says the problem was caused by update KB5036893, which was initially released on April 9, 2024. The update makes "miscellaneous security improvements to internal OS functionality," among a few other minor changes. The company hasn't provided specific information on what's been broken or what needs fixing, noting only that PCs "might face VPN connection failures" after installing the update.
Routine updates have caused several headaches for VPN-using Windows 10 and 11 users in the last couple of years; updates in early 2022 broke some L2TP and IPSEC VPNs, and another update about a year ago slowed down speeds over VPN connections. Of course, Microsoft isn't always to blame for VPN problems in Windows-earlier this month, we wrote about issues with the Google One VPN software totally resetting DNS settings for all network adapters.
An Anonymous Coward writes:
Latest Windows update has borked VPN use on all versions
The April 2024 Windows security patch appears to be the culprit for broken Virtual Private Network functionality. The bug prevents users from connecting to a VPN to conceal their home Wi-Fi network's IP address when browsing the web or accessing content from abroad.
Microsoft has acknowledged the issue, with the KB5036893 that dropped almost a month ago, which it says affects all current versions of Windows 11, Windows 10 and Windows Server. It promises a fix is incoming.
On a support page (via The Verge), the company says: "VPN connections might fail after installing the April 2024 security update.
"Windows devices might face VPN connection failures after installing the April 2024 security update (KB5036893) or the April 2024 non-security preview update. We are working on a resolution and will provide an update in an upcoming release."
While Windows users wait for the resolution, the only known workaround is to roll back the operating system update, and uninstall the update.
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