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Fixing Nginx Upstream Connection Refused in Load Balancing - VS Code C++ Breakpoints Not Working: How to Fix-Resolve Windows Update Error 0x80070002

Updated 2026-07-28 13:43:19office-tools
Fixing Nginx Upstream Connection Refused in Load Balancing - VS Code C++ Breakpoints Not Working: How to Fix-Resolve Windows Update Error 0x80070002
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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