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Fix Cloudflare 521 Error: DNS Configuration Problem - Resolve Git SSL Certificate Error: Unable to Get Local Issuer-How to Fix Firewall Blocking Shared Folder Access

Updated 2026-07-28 14:14:04developer-tools
Fix Cloudflare 521 Error: DNS Configuration Problem - Resolve Git SSL Certificate Error: Unable to Get Local Issuer-How to Fix Firewall Blocking Shared Folder Access
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.