In which country do you bought and use Google Services? Model of device
and issue, I will be happy to help you here and tell you the way to
contact Google support if you tell me your country:)
Google Chromecast remote powers on and off the connected receiver either
using CEC or IR blaster. It powers on and off the TV using IR blaster
but not the CEC. Chromecast only offers the option to map the power
button to CEC, receiver (CEC), receiver...
