Alex Ruben
How to Resolve Microsoft Teams Error Code 407 in Windows 11
This guide will take you through the steps needed to fix Microsoft Teams Error Code 407, also known as “Proxy Authentication Required,” on Windows 11. By following these instructions, you’ll learn how to update and reinstall Microsoft Teams, ensuring a smooth and uninterrupted experience with the app.
Step 1: Update Microsoft Teams
Updating Microsoft Teams can often resolve connection issues:
- Open Microsoft Teams.
- Click on the Settings and more button (three dots) located at the top-right corner.
- Select Check for updates.
- Teams will automatically download and install any available updates.
- Once the update is complete, restart Teams.
Step 2: Reinstall Microsoft Teams
If updating does not fix the issue, a clean reinstall may help:
- Type
Control Panelin the Windows search bar and press Enter. - Navigate to Programs and then select Uninstall a program.
- Locate Microsoft Teams, right-click on it, and choose Uninstall.
- Follow the prompts to remove the application.
- After uninstalling, press Win + E to open File Explorer.
- In the View tab at the top of the window, enable Hidden Files.
- Navigate to
C:\Program Files\WindowsApps. - Scroll down to find the Microsoft Teams folder and delete it. Alternatively, you can rename it.
- Now, type
%AppData%in the Windows search bar and press Enter. - Delete the Teams folder found here.
- Finally, restart your system and reinstall Microsoft Teams.
Extra Tips & Common Issues
Here are some additional tips to ensure a smoother process:
- Ensure your network allows direct connections to Teams and properly configured proxy settings.
- Check if your antivirus or firewall is blocking Microsoft Teams.
- Make sure you are using the latest version of Windows for compatibility.
- If problems persist, contacting network administrators for assistance may prove beneficial.
Conclusion
By updating and reinstalling Microsoft Teams, you should be able to resolve Error Code 407. These steps are crucial for restoring full functionality to the application, enhancing your collaboration capabilities. If you encounter further issues, consider looking into network settings or seeking additional support.