Fix Windows Terminal Proxy Error: Connection Refused or Cannot Reach Proxy - How to Clear Microsoft Teams Cache for Token Errors-Outlook and Exchange Version Mismatch Troubleshooting

Updated 2026-06-14 16:04:13office-tools
Fix Windows Terminal Proxy Error: Connection Refused or Cannot Reach Proxy - How to Clear Microsoft Teams Cache for Token Errors-Outlook and Exchange Version Mismatch Troubleshooting
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.