Fix OneDrive 504 Gateway Timeout Error Code - How to Setup Windows Defender Exclusion for Network Drives-Access Denied When Opening Log Files in CMD

Updated 2026-06-14 06:24:12security-tools
Fix OneDrive 504 Gateway Timeout Error Code - How to Setup Windows Defender Exclusion for Network Drives-Access Denied When Opening Log Files in CMD
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.