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Microsoft Store Authentication Failed: Quick Fix Checklist - How to Troubleshoot Cloudflare Error 521-Fix Microsoft Store Network Connection Problem on Windows 10

Updated 2026-06-14 07:15:34cloud-software
Microsoft Store Authentication Failed: Quick Fix Checklist - How to Troubleshoot Cloudflare Error 521-Fix Microsoft Store Network Connection Problem on Windows 10
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.