Network ports and firewalls

World Stream uses standard web technologies such as WebRTC and Websockets. On particularly robust corporate or similar networks, you may need to whitelist these services. Learn more below.

This information is intended for system administrators. If you are not the administrator of your network, the information on this page may not be useful for you. In those cases, we suggest that you consult our troubleshooting documentation.

Basic World Stream functionality

World Stream is currently hosted on Google Cloud Compute, which uses a variety of locations for delivery. In order for World Stream to be delivered, you will need to whitelist the following address:


If you encounter problems with WebRTC, you can perform a WebRTC test at, which will help diagnose common issues.

Users attempting to connect to Breakroom from behind an aggressive firewall may run into issues, as they will have limited access to the internet. In these cases, a commercial TURN server may provide the necessary solution.


Voice services are delivered by High Fidelity. For World Stream to work properly, you will need to whitelist the following addresses:

Additionally, please enable incoming and outgoing UDP and TCP traffic on ports 443, 3478, and 5349, to and from *

Note for Google Chrome Enterprise Users: If your Group Policies include the DefaultMediaStreamSetting_BlockAccesssetting being enabled, voice and video services will not work, even for passive listening.

Webcam and screen sharing

Webcam and screen share functionality are delivered by Agora. For World Stream to work properly, you will need to whitelist the following domains:

And the following ports on those domains:

TCP/80; 443; 3433; 5668; 5669; 4700 - 5000; 6080; 6443; 8667; 9667; 30011 - 30013 UDP/3478; 4700 - 5000

Agora additionally provides a basic testing service, which is available here.

Last updated

Sinespace® is a registered trademark of Sine Wave Entertainment Ltd, All Rights Reserved.