Connection to Smart TV via airplay stopped working on IPhone X.

How come my wife’s IPhone 11 Pro easily connects via airplay to Smart tv and my IPhone X just doesn’t work with it. Even no, when I try to connect to TV I get message “make sure that you are connected t the same network”. But if this message appears it means that it sees each other etc. But just it doesn’t show my iPhone’s content. Only message.