The 573 is a recent model, so it uses the RX-A set. The naming is a bit confusing, but usually nobody runs into it as an issue because the auto-discovery chooses the correct command set for you.
Thanks for the quick response. I’ve tried this on zone 1 and zone 2 but nothing works at all. I have the Yamaha app on the ipad and this all works so I’m confident the amp is set up ok.
Are you saying the roomie should normally see the Yamaha advertised? I do get my samsung TV and virgin TiVo advertised and these work great! Its a UK model if this makes a difference.
Managed to sort it. I used the RX-A zone 1 set as you advised but bused port 50000 and not port 80