Microsoft's March update for Windows 11 has introduced a persistent sign-in failure affecting users on versions 25H2 and 24H2 with KB5079473. The issue manifests when devices enter a specific network state, causing applications like Microsoft Teams, OneDrive, Edge, Excel, Word, and Copilot to incorrectly treat the system as offline—even when an active internet connection exists.
The problem is not isolated to a single application but spans multiple Microsoft services tied to Microsoft accounts. A temporary workaround involves restarting the device, though users report that the error often reappears shortly after. Microsoft has acknowledged the issue and is working on a permanent fix, which is expected in the coming days.
This latest update follows a series of reported bugs in Windows 11, including issues with C: drive access on Samsung devices and broader concerns about system stability. While the March update does not affect server platforms, its impact on consumer workflows—particularly for productivity apps—raises questions about Microsoft's quality assurance process.
- Key specs:
- Affected versions: Windows 11 25H2 and 24H2 with KB5079473 (OS Build 26100.8037)
- Impacted apps: Microsoft Teams, OneDrive, Edge, Excel, Word, Copilot
- Workaround: Restarting the device may temporarily resolve the issue.
The bug underscores ongoing challenges with Windows 11's stability, particularly for users reliant on cloud-integrated workflows. While Microsoft has not confirmed a timeline for the fix, the recurrence of such issues suggests a need for more rigorous testing before widespread deployment. For now, affected users are advised to monitor updates and apply fixes as they become available.
