Learn how to configure your firewall for optimal Microsoft Teams media connectivity in our comprehensive guide. Discover the importance of UDP ports 3478 through 3481 in ensuring seamless media traffic.
Table of Contents
Question
You have a Microsoft 365 E5 subscription.
You plan to use Teams.
You run the Microsoft 365 network connectivity test tool and generate a report.
You discover that the Microsoft Teams section of the report has a warning notification for media connectivity.
You suspect a firewall issue at the test location.
Which destination protocol and port range should you configure on the firewall?
A. UDP ports 50020 through 50059
B. TCP ports 3478 through 3481
C. UDP ports 50000 through 50019
D. UDP ports 3478 through 3481
Answer
D. UDP ports 3478 through 3481
Explanation
Microsoft Teams uses these ports for media traffic. If these ports are blocked on your firewall, you might see a warning notification for media connectivity in the Microsoft Teams section of the report generated by the Microsoft 365 network connectivity test tool. By configuring your firewall to allow traffic through UDP ports 3478 through 3481, you can ensure optimal media connectivity for Microsoft Teams.
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