Fix Outlook 'Not Connecting to Server' Network Error - Fix Windows Defender Real-Time Protection Authentication Failed-Unlock Chrome Profile File After Crash

Updated 2026-06-14 00:12:34developer-tools
Fix Outlook 'Not Connecting to Server' Network Error - Fix Windows Defender Real-Time Protection Authentication Failed-Unlock Chrome Profile File After Crash
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.