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Windows 11 update causes Wi-Fi connection problems in universities – Update fix


Original message 12/18/2023, 6:47 PM –

The Windows 11 security update KB5033375 released this month is reportedly causing some users in “semi-public” places like universities and businesses to have trouble connecting to the Wi-Fi access point. Most users report that the WiFi connection is suddenly very slow, and in other cases it may no longer be possible to connect at all.

Windows Latest discovered the notifications and saw that several universities have already advised students to undo this update. The site cites US and UK universities, but based on a Reddit thread, universities in the Netherlands and Belgium are also affected. So it seems to be a fairly widespread problem, although the exact cause is still unclear. Windows Latest speculates that it has to do with the operating system’s Protected Extensible Authentication Protocol settings, as the problem appears to occur on Wi-Fi connections that run via this security protocol.

So, in addition to uninstalling the KB5033375 update, switching to the eap-tls protocol may solve the problem. In addition, it is claimed on Reddit that disabling the 802.11r standard (which allows seamless switching from one access point to another) also solves the problem, but this leads to roaming problems. Microsoft has not yet indicated that it is aware of the problem. So it remains to be seen whether a fix will be released.

Update 12/20/2023, 6:29 AM –

Microsoft confirms via the Windows Release Health Dashboard that Windows 11 users may experience Wi-Fi issues after installing KB5032288 (or KB5033375). The company is currently investigating the cause and calls on those affected to report the problem via the Feedback Hub:

  • Open the Feedback Hub via Windows key + F
  • Summarize the feedback
  • Highlight the ‘Problem’ category and choose ‘Network and Internet’ and ‘Connect to a Wi-Fi network’ as subcategories
  • Under ‘Find similar feedback’, select ‘New feedback’
  • Provide additional details (optional)
  • Choose ‘Reconstruct my problem’, ‘Start recording’ and reproduce the problem
  • Finally, click ‘Stop Recording’ and ‘Send’

Update 20-12-2023, 12:58 –

Microsoft has now confirmed that the connection problems are caused by updates KB5032288 and KB5033375. These versions are now being rolled back via Known Issue Rollback, which should resolve the issues. It may take up to 24 hours for this process to be initiated automatically. By restarting the Windows system, the KIR may be applied more quickly. For IT administrators there is also a new Group Policy, which can be downloaded via the Health Dashboard.

Sources: Windows Latest, Reddit, Microsoft

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