Microsoft is actively investigating a widespread authentication issue affecting users attempting to access Microsoft 365 web-based services through Google Chrome version 147.
The problem,
first reported on April 16, 2026, has left a significant number of users unable to properly load or interact with Microsoft 365 applications in their browser.
According to Microsoft’s official service health dashboard, users running Google Chrome version 147 are experiencing failures when accessing Microsoft 365 web services.
The root cause appears to be tied to specific authentication configurations that are incompatible with the latest Chrome release. Microsoft confirmed the issue impacts the browser’s ability to complete authentication flows correctly, preventing users from signing in or loading web-based Microsoft 365 apps as expected.
Workarounds
Microsoft has advised affected users to try the following steps while the fix is being rolled out:
- Refresh the browser page, which may restore access in some cases as Microsoft applies backend configuration changes
- Switch to an alternative browser, such as Microsoft Edge, Firefox, or Safari, as a temporary workaround
- Use Microsoft 365 desktop applications where available to avoid browser-dependent authentication flows
- IT administrators should monitor the Microsoft 365 admin center service health dashboard for real-time updates
Microsoft is actively investigating a widespread authentication issue affecting users attempting to access Microsoft 365 web-based services through Google Chrome version 147.
cybersecuritynews.com
