I have a Google Chromecast since about five years ago and have used it with no problem. Connection is to HDMI port on smart TV. Recently away from home I tried to connect to a TV in the apartment. Fiddled a bit through Google Home and maybe changed some settings but no success and gave up! Since coming home my TV now says that it is getting no signal from the chromecast. I can't now find any way to link to the chromecast through Google Home, so any help will be much appreciated. Thanks.