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Fix Windows Defender Network Error After Update - Check Outlook Version for Mismatch-Windows Event ID 4625 Authentication Failure Guide

Updated 2026-06-14 16:05:06cloud-software
Fix Windows Defender Network Error After Update - Check Outlook Version for Mismatch-Windows Event ID 4625 Authentication Failure Guide
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.