Fix Microsoft Teams Stuck on Loading Due to Network Firewall - How to Resolve 0x80070422 in Windows Defender-Windows Security Dependency Conflict – Troubleshooting Guide

Updated 2026-06-13 16:33:58browser-issues
Fix Microsoft Teams Stuck on Loading Due to Network Firewall - How to Resolve 0x80070422 in Windows Defender-Windows Security Dependency Conflict – Troubleshooting Guide
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.