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Fix ERR_CONNECTION_RESET Caused by Firewall Blocking Chrome - Resolve Chrome NET::ERR_CERT_AUTHORITY_INVALID Due to Date/Time-Resolve Cloudflare 521 Origin Connection Error

2026-07-28 17:29:59
Fix ERR_CONNECTION_RESET Caused by Firewall Blocking Chrome - Resolve Chrome NET::ERR_CERT_AUTHORITY_INVALID Due to Date/Time-Resolve Cloudflare 521 Origin Connection Error

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

Next references

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