Classroom Prerequisites

  • Must be running within a Chrome browser or OS.
  • Note: Relay Classroom supports Chrome’s two previous versions from its current stable version. For example, if Chrome’s current stable version is 67, Relay Classroom supports all versions 65 or greater.
  • Must Enable Screenshots in the Google Admin Console.

The following outbound ports must be open on your network:

  • TCP/UDP-443 to communicate to the cloud servers
  • TCP/UDP-3478 to share and broadcast screens
  • TCP-5349 to share and broadcast screens

The following domains/hosts should be allowed on your network:

  • 5rw61tcrl5.execute-api.us-west-2.amazonaws.com
  • realtime.ably.io
  • rest.ably.io
  • global.stun.twilio.com
  • global.turn.twilio.com
  • p7nvu5it0k.execute-api.us-west-2.amazonaws.com