We have put together a short survey to capture your feedback in terms of what BT can do when you experience home Wi-Fi issues. We would appreciate it if you could take a couple of minutes to complete a short survey. Read more from here, Fix my home Wi-Fi
Just set up my new YouView box today, but the BT player button doesn't do anything ! The remote responds but the player doesn't open. Everything else works ok
sounds like you haven't updated your software, check the box is connected to the homehub and you have internet, you can try using BBC iplayer, if that works then the box has an internet connection.
Then go to settings> device management> check for software update.