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GitHub Actions Runner Not Connecting: Fixes That Work - Docker Build Failed: Unexpected Status 403 Forbidden-Windows Authentication Failed: Step-by-Step Fix

Updated 2026-06-13 22:04:38developer-tools
GitHub Actions Runner Not Connecting: Fixes That Work - Docker Build Failed: Unexpected Status 403 Forbidden-Windows Authentication Failed: Step-by-Step Fix
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.