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Fix Chrome Certificate Error Invalid Authority on Mac - Cloudflare 521 Error: Port 443 Blocked Fixes-How to Resolve ERR_CONNECTION_RESET on Android Chrome

Updated 2026-07-28 05:40:45browser-issues
Fix Chrome Certificate Error Invalid Authority on Mac - Cloudflare 521 Error: Port 443 Blocked Fixes-How to Resolve ERR_CONNECTION_RESET on Android Chrome
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.