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Home / developer-tools / How to Fix Command Prompt 504 Gateway Timeout Error - How to Enable Windows Defender Service (Code 0x80070422)-How to Fix Outlook Authentication Failed Error 0x80048820

How to Fix Command Prompt 504 Gateway Timeout Error - How to Enable Windows Defender Service (Code 0x80070422)-How to Fix Outlook Authentication Failed Error 0x80048820

Updated 2026-06-14 04:23:39developer-tools
How to Fix Command Prompt 504 Gateway Timeout Error - How to Enable Windows Defender Service (Code 0x80070422)-How to Fix Outlook Authentication Failed Error 0x80048820
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.

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