Fix Windows Update Error 0x80070020: Port Already Allocated - Fix Outlook Connection Refused Error on Windows 10-Fix OneDrive Sync Blocked by Firewall or Network Error
Before changing system settings, save your work and note the exact error text so you can compare results after each step.
Extra verification checklist
- Restart the affected app after changing permissions or configuration files.
- Test the same workflow in a clean browser profile or a temporary user account.
- Compare the result on another network if the error may be connection related.
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