A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
Dear @Robert Hilke,
Thank you for reaching out to the Microsoft 365 Q&A forum community support team. I understand how frustrating it is to be blocked from accessing your files when the SharePoint icon leads to a redirection loop. This "too many redirects" error typically occurs when there is a conflict between your browser’s cached data and the Microsoft 365 authentication service. I would be happy to help you resolve this and get you back into SharePoint.
Please try the following steps to bypass the redirection loop:
- Use Incognito/InPrivate Mode: Open a new InPrivate window (Ctrl+Shift+N for Edge/Chrome) and sign in at portal.office.com. If SharePoint opens here, the issue is caused by your browser's stored cookies.
- Clear Browser Cache and Cookies: In your browser settings, clear your "Browsing data" for at least the last 24 hours. Specifically, ensure that "Cookies and other site data" are selected.
- Direct URL Access: Instead of using the app launcher icon, try navigating directly to your organization’s SharePoint root URL:
https://[yourdomain]. sharepoint.com. Replace [yourdomain] with your school or company name. - Flush your local DNS cache (just in case)
- On Windows open a Command Prompt as admin and run
ipconfig /flushdns
Error when accessing OneDrive or Sharepoint - SharePoint | Microsoft Learn
Microsoft is currently transitioning several services to the cloud.microsoft domain. Occasionally, if a browser holds an old security token for the office.com or sharepoint.com domains, it creates a "loop" where the site keeps trying to verify who you are.
For further technical details on why these errors occur in Microsoft 365, you can refer to this official documentation: Reactivate your subscription in the Microsoft 365 admin center | Microsoft Learn
I hope this helps you access your SharePoint site immediately. Please let me know if the error persists even in an InPrivate window, and I will be happy to investigate further for you.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.