Fix Windows Search 504 Gateway Timeout After Update - PowerShell Authentication Failed: How to Fix Permission Denied-How to Fix 502 Bad Gateway Certificate Errors in PowerShell

Updated 2026-06-13 18:46:10windows-fixes
Fix Windows Search 504 Gateway Timeout After Update - PowerShell Authentication Failed: How to Fix Permission Denied-How to Fix 502 Bad Gateway Certificate Errors in PowerShell
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.