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Fix Git SSL Certificate 'Unable to Get Local Issuer' After Update - Troubleshooting Windows Security App Issues-How to Fix Cloudflare 521 Error (Port 443 Blocked)

2026-07-28 17:41:21cloud-software
Fix Git SSL Certificate 'Unable to Get Local Issuer' After Update - Troubleshooting Windows Security App Issues-How to Fix Cloudflare 521 Error (Port 443 Blocked)

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.