I don’t really understand what you want to do with EXT_YOUTUBECAST-DISCONNECTED because this notification is Sended only when CastWindow is close (or forced to close)

in youtube configuration file , i set fullscreen:true and youtubecast works giving display in full screen ,idk how but in my case this works

EXT-YTCast just (re)tested and works (with instruction in wiki) only on wifi connected on same network

I understand it better now. I can use the “hey google, stop” command to close te window, that works great! Thanks

Regards Robert

thanks!
nice day!