Ask device manufacturers or turn to the device user manual for help, make sure that your Streaming device like Smart TV or box support DLNA/AirPlay, you need to turn it on before casting.
Outdated Set Top Box and TV box, device without WiFi feature are not supported.
2
Keep your Android phone, smart TV and streaming devices in the same WiFi network.
Connection in cellular data is unable to cast from phone to streaming devices.
3
Select streaming device by tapping Cast button at upper right corner, you can cast streaming videos from web after device connected.
Playback control
Remote control features added
Playback control will be enabled after you cast successfully, features includes backward, forward, pause, stop, volume + and volume -