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Microsoft: March Windows updates break Teams, OneDrive sign-ins

Recorded: March 20, 2026, 9 a.m.

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Microsoft: March Windows updates break Teams, OneDrive sign-ins

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HomeNewsMicrosoftMicrosoft: March Windows updates break Teams, OneDrive sign-ins

Microsoft: March Windows updates break Teams, OneDrive sign-ins

By Sergiu Gatlan

March 20, 2026
03:33 AM
0

Microsoft says the March Windows 11 update breaks sign-ins with Microsoft accounts across multiple Microsoft apps, including Teams and OneDrive.
These sign-in issues appear after installing the KB5079473 cumulative update Microsoft released last week as part of this month's Patch Tuesday, and, according to a Windows release health dashboard update published on Wednesday, will trigger warnings that the impacted devices are not connected to the Internet.
The list of affected applications also includes Microsoft Edge, Excel, Word, and Microsoft 365 Copilot, which will display the same error message for features that require a Microsoft account sign-in.
"As a result of this issue, sign in attempts will display an error message with text similar to 'You'll need the Internet for this. It doesn't look like you're connected to the Internet.' This appears even if the device is connected to the Internet," Microsoft said.
"Please note that this issue occurs only with sign in operations involving Microsoft accounts, which are commonly used for Microsoft Teams Free. Businesses using Entra ID (previously known as Azure Active Directory) for app authentication will not be affected by this issue."
While working on a fix for this issue, Microsoft also provided a temporary workaround for those affected, which requires them to restart their PCs in the hope that the internet connectivity issues will resolve on their own.
"This issue occurs when the device enters a specific network connectivity state, and may resolve on its own. If you encounter this issue, restart the device while keeping it connected to the Internet. This should repair the device connectivity state and prevent the issue from occurring," Microsoft added.
"However, please note that if the device is restarted without an active internet connection, it might return to a connectivity state where the issue can occur again."
Since this month's Patch Tuesday Windows updates were released, Microsoft has also issued two emergency out-of-band (OOB) updates for hotpatch-enabled Windows 11 Enterprise devices that address a Bluetooth device visibility issue and several security flaws in the Routing and Remote Access Service (RRAS) management tool.
Microsoft has also shared guidance to fix C:\ drive access issues and app failures on some Samsung Windows 11 laptops, which are triggered by a buggy version of the Samsung Galaxy Connect (or Samsung Continuity Service) app.

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Related Articles:
Windows 11 KB5074105 update fixes boot, sign-in, and activation issuesMicrosoft fixes bug causing password sign-in option to disappearNew Windows 11 hotpatch fixes Bluetooth device visibility issueMicrosoft shares fix for Windows C: drive access issues on Samsung PCsMicrosoft still working to fix Windows Explorer white flashes

Copilot
KB5079473
Known Issue
Microsoft
Microsoft 365
Microsoft Teams
OneDrive
Sign-In
Windows
Windows 11
Windows 11 25H2

Sergiu Gatlan
Sergiu is a news reporter who has covered the latest cybersecurity and technology developments for over a decade. Email or Twitter DMs for tips.

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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.