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Fix Cloudflare 521 Error: DNS Configuration Problem - Windows Security App Not Opening Access Denied-VSCode Git Changes Not Detected Troubleshooting

Updated 2026-07-28 14:12:42office-tools
Fix Cloudflare 521 Error: DNS Configuration Problem - Windows Security App Not Opening Access Denied-VSCode Git Changes Not Detected Troubleshooting
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Operational follow-up

  • Record the exact option, command, or setting that changed the result.
  • Keep a rollback note if the workflow affects shared files or team settings.

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