Fix Remote Desktop Proxy Authentication Failed Errors - Troubleshoot Teams Startup Failure in Windows 11-Windows 10 RDP DNS Configuration Guide

Updated 2026-06-14 04:55:04macos-help
Fix Remote Desktop Proxy Authentication Failed Errors - Troubleshoot Teams Startup Failure in Windows 11-Windows 10 RDP DNS Configuration 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.