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How to Fix Cloudflare 521 Error with Firewall Settings - Edge Sync Error 0x80070424 Troubleshooting Guide-Fix Git Authentication Error in VS Code with Two-Factor Auth

2026-07-28 15:49:36
How to Fix Cloudflare 521 Error with Firewall Settings - Edge Sync Error 0x80070424 Troubleshooting Guide-Fix Git Authentication Error in VS Code with Two-Factor Auth

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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