MongoDB Authentication Failed Error 18: Causes and Fixes - Microsoft Store 502 Bad Gateway: Troubleshooting Guide-How to Re-enable Windows Security Virus Protection

Updated 2026-06-17 22:29:48macos-help
MongoDB Authentication Failed Error 18: Causes and Fixes - Microsoft Store 502 Bad Gateway: Troubleshooting Guide-How to Re-enable Windows Security Virus Protection
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.