How to Fix 'This Site Cannot Be Reached' Error When Opening OneDrive
Question details
The user is unable to open OneDrive from the Microsoft 365 landing page and receives a browser error message indicating the site cannot be reached.
- Product
- OneDrive
- Device & OS
- not provided
- Scenario
- Attempting to access OneDrive files via a web browser from the main Microsoft 365 dashboard.
- Observed behavior
- The browser fails to load the OneDrive interface and displays a 'This site cannot be reached' error.
Ensure your device has a stable internet connection and temporarily disable any active VPNs or strict firewall settings that might block Microsoft 365 domains.
Use Private Browsing and Clear Browser Cache
Browser caches or corrupted cookies often prevent OneDrive from loading correctly. Using a private window helps verify if browsing data is causing the issue.
When your browser stores outdated site data, it can cause connection errors specifically with cloud services like Microsoft 365. Testing in an Incognito or InPrivate window bypasses this cached data.
Launch your web browser and open an InPrivate window (Microsoft Edge) or Incognito window (Google Chrome) using the browser's main menu.
Navigate to the Microsoft 365 login page, sign in to your account, and attempt to open OneDrive.
If OneDrive opens successfully in the private window, return to your normal browser window, go to settings, locate the 'Clear browsing data' option, and delete your cache and cookies.
Close all browser windows, reopen your browser, and try accessing OneDrive normally.
Switch to a Different Web Browser or Device
Device-specific network configurations or incompatible browser extensions might interfere with your connection to Microsoft 365.
Check Account Status with Your IT Administrator
If local troubleshooting fails, your account might be restricted, locked, or improperly licensed at the administrative level.
Manage Your Documents Seamlessly with WPS Office
If Microsoft 365 cloud services are temporarily unavailable or causing connection issues, consider trying WPS Office. It is a free, lightweight, and powerful office suite that allows you to work offline and handles Microsoft Office formats with ease.
Frequently Asked Questions
Why does OneDrive say 'This site cannot be reached' only on my computer?
This is usually caused by corrupted local browser cache, an interfering browser extension, or a strictly configured local firewall or antivirus blocking the specific Microsoft domain on that device.
Can I access my OneDrive files if the web portal is down?
Yes, if you have the OneDrive desktop application installed and synced to your PC or Mac, you can still access your locally synced files directly through File Explorer or Finder.
Does clearing my browser cache delete my OneDrive files?
No, clearing your browser cache and cookies only removes temporary browsing data from your local device. Your files stored in OneDrive remain safely unaffected in the cloud.
What should I do if my Microsoft 365 administrator says my account is active but I still cannot connect?
Ask the administrator to verify your assigned licenses, check if your SharePoint or OneDrive URL has been recently changed, and ensure no Conditional Access policies or IP restrictions are blocking your current location.
