Some of the topics are related to this thread. At least for me, since
everything starts after a factory reset and then a setting the device
with the Home app showed this error, Chromecast could not be
authenticated. Setting remote control buttons is ...
Same problem happened to me. Trying to add my Tv and Soundbar and
recived this error "Something went wrong" factory reset the remote and
Chromecast device 3 times. Even tried to connect to other network and
nothing, but then i noticed when i turned t...