If you have a new Chromecast, please see here to learn how to to set it up for first use.
Once setup, turn on the TV that is connected to a Chromecast and make sure the TV source is set to Chromecast. If you are using a mobile device, make sure it is connected to the same Wi-Fi network as your Chromecast.
Tap the “Cast” icon in the lower righthand corner of the player. If no icon appears, this means casting is not supported on your device.
Tap the Chromecast device you want to cast to and then tap Play. Your content will start playing on the TV connected to that Chromecast device. To stop casting content, tap the Cast button and then Disconnect.
in the lower righthand corner of the player. If no icon appears, this means casting is not supported on your device.