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Fix Missing Edge Sync Option in Settings - Troubleshooting Error 0x800f081f After Windows Update-Nginx Upstream Connection Refused Timeout Fix

Updated 2026-07-28 12:08:17office-tools
Fix Missing Edge Sync Option in Settings - Troubleshooting Error 0x800f081f After Windows Update-Nginx Upstream Connection Refused Timeout Fix
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.