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MySQL Connection Refused Authentication Error Checklist - Fix Windows Defender Cache Not Clearing-Python Module Not Found After pip install: Causes and Fixes

Updated 2026-06-13 15:26:02macos-help
MySQL Connection Refused Authentication Error Checklist - Fix Windows Defender Cache Not Clearing-Python Module Not Found After pip install: Causes and Fixes
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.