
OneDrive Sync Proxy Error: Troubleshooting Checklist
If you see 'Proxy error' or 'Cannot sync' in OneDrive while connected through a corporate or home...

If you see 'Proxy error' or 'Cannot sync' in OneDrive while connected through a corporate or home...

You open OneDrive and see “Sync pending” on a shared folder. Files aren’t downloading or uploadin...

If you're stuck in a login loop in Windows Terminal — you type your password, the screen flashes,...

You open Windows Security and see a warning about a DNS error, or Windows Defender cannot update ...

You try to sync files with OneDrive on Ubuntu, but it hangs—no progress, no errors. This is commo...

You try to visit a website in Firefox and see a Secure Connection Failed error, ...