Microsoft: March Windows updates break Teams, OneDrive sign-ins
Recorded: March 20, 2026, 9 a.m.
| Original | Summarized |
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Microsoft released its March 2026 Windows 11 Patch Tuesday updates, which, unfortunately, introduced significant disruptions for users. The primary issue stemmed from cumulative update KB5079473, causing problems with sign-in processes for Microsoft accounts across several key applications. Specifically, users encountered error messages indicating a lack of internet connectivity, even when devices were connected, affecting Microsoft Teams, OneDrive, Microsoft Edge, Excel, Word, and Microsoft 365 Copilot. This interference was particularly problematic for those utilizing Teams Free, authenticated through Microsoft accounts. Notably, the issue wasn’t impacting systems utilizing Entra ID (formerly Azure Active Directory) for authentication, suggesting a specific vulnerability related to Microsoft account sign-ins. Microsoft provided a temporary workaround recommending a device restart while maintaining an active internet connection. This approach aimed to rectify the device’s network connectivity state, potentially resolving the recurring error. However, a restart without an active internet connection could reintroduce the problem. In response to the widespread impact, Microsoft issued two out-of-band (OOB) emergency updates for Windows 11 Enterprise devices. These updates addressed a Bluetooth device visibility issue and several security vulnerabilities within the Routing and Remote Access Service (RRAS) management tool. Furthermore, Microsoft released guidance to resolve C:\ drive access issues and app failures observed on certain Samsung Windows 11 laptops, attributable to a faulty version of the Samsung Galaxy Connect (or Samsung Continuity Service) application. This confluence of issues highlights the complexity of patching large operating systems and the potential for unforeseen consequences resulting from cumulative updates. The situation underscored the need for meticulous testing and rapid response capabilities within Microsoft’s release cycle. |