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Fix Cloudflare Error 521 After a Server Update - Cloudflare Wildcard DNS Troubleshooting Guide-How to Fix Git Authentication Failure in VS Code

2026-07-28 21:46:36
Fix Cloudflare Error 521 After a Server Update - Cloudflare Wildcard DNS Troubleshooting Guide-How to Fix Git Authentication Failure in VS Code

Result check

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

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