What is Google cast?

Google Cast is screen sharing protocol used by most Android devices as well as Chrome OS and when casting from the Chrome browser from any operating system. Airtame provides Google Cast mirroring only. 

Google Cast mirroring streams are encoded in H.264 or VP8 formats and transmitted as UDP packets. 


How to test

  • Airtame device needs to be updated to Beta firmware version 3.8.0-b1. How to update to beta
  • Google Cast needs to be enabled in Airtame Cloud for desired devices
  • Any feedback can be sent to us via chat icon in the bottom right corner of this screen or via email support@airtame.com


Network requirements for Google Cast

Google Cast is using following ports:

  • Inbound: TCP: 8009-8019; UDP: 1900
  • Outbound: TCP: 7236
  • Bonjour services: _googlecast._tcp
  • Google Cast relies on Bonjour mDNS for discovery.



  • Latency for Google Cast on AirServer is around 650 ms under good network conditions.
  • Maximum bitrate can be as high as 20 Mbps but average bitrates will be significantly lower.
  • Most Android devices encode Google Cast at a resolution of 720p at 30 fps, but Chrome OS and casting from the Chrome browser as well as a few devices offer higher resolution. 



  • Google Cast will only work on Airtame 2.
  • We support Android 8 and up.
  • Some phones require the Google Home app to cast - How to cast from Google Home app.
  • No PIN code support. Google Cast does not provide PIN code support therefore PIN will need to be disabled or Pin override has to be enabled as well
  • Chrome OS version 74 or newer might not find Google Cast as casting destination. Check this article for troubleshooting.
  • Most devices will not transmit video protected with Digital Rights Management (DRM) such as Netflix for copyright and legal reasons, this however is device vendor specific and is a limitation set by the content providers.
  • Samsung specific features "Smart view", "Screen mirroring", "Quick Connect" and others are using Miracast protocol therefore will not work with Google Cast.
  • If you stream a Chrome tab from a browser/ChromeOS and navigate to e.g. YouTube.com the connection will drop, as the computer initiates a media-playback session, which is not received by Airtame. However if you start the mirroring session while being on the YouTube domain already you can successfully mirror YouTube from your laptop
  • Google Cast on Airtame does not support casting from within application (by pressing Chromecast button). This means Airtame will not show up as casting destination within the Youtube, Facebook apps. Users can still access this content by sharing full screen.


Learn more:

  • How to cast your Android screen from the Google Home app. Read here.
  • Optimised devices for Android Screen casting. Read here.
  • How to use Google cast with your Chromebook. Read here.
  • How to mirror older Windows versions and Linux. Read here.
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