Microsoft Account Sign-in Issues Fixed with KB5085516 Update

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Microsoft Issues Emergency Update to Address Microsoft Account Sign-in Issue Across Multiple Apps

The update addresses a critical issue affecting Microsoft account sign-ins across various applications, including Teams, OneDrive, Microsoft Edge, and Office apps.

This issue causes devices to display an error message indicating that they are not connected to the Internet, despite being online.
This affects sign-in operations involving Microsoft accounts, particularly those used for Microsoft Teams Free.
However, businesses utilizing Entra ID (formerly known as Azure Active Directory) for app authentication are not impacted by this issue.

Temporary Workaround Provided by Microsoft

As part of the solution, Microsoft provided a temporary workaround involving restarting PCs in hopes that the internet connectivity issues would resolve on their own.

Solution Implemented via Optional Out-of-Band Update

The KB5085516 update resolves the bug and includes all patches delivered with the Microsoft 2025 Patch Tuesday Windows security update.

The update is available for Windows 11 versions 25H2 and 24H2 devices that receive standard Windows updates.
It can be installed through Windows Update or the Microsoft Update Catalog.

According to Microsoft, the company emphasized the importance of installing the latest updates for devices, as they contain crucial improvements and issue resolutions, including the one addressed in this update.

Additional Recent Patches Addressing Various Issues

Microsoft released the update on the heels of other recent patches addressing various issues, including:

A Bluetooth device visibility problem
Security vulnerabilities in the Routing and Remote Access Service (RRAS) management tool
C:\\ drive access issues on certain Samsung Windows 11 laptops caused by a flawed version of the Samsung Galaxy Connect (or Samsung Continuity Service) app

Microsoft’s prompt action in releasing the KB5085516 update demonstrates its commitment to ensuring the stability and security of its products, particularly for business customers relying on its services.