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How to Fix Nginx Upstream Connection Refused Error - How to Fix DNS Probe Errors via Router Settings-Fix macOS Keychain Git Credentials in Visual Studio Code

Updated 2026-07-28 11:16:47developer-tools
How to Fix Nginx Upstream Connection Refused Error - How to Fix DNS Probe Errors via Router Settings-Fix macOS Keychain Git Credentials in Visual Studio Code
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.

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