Hi, I’m trying to connect my Play 1 and One SL to my Beam for surround sound.  They are all WiFi enabled and powered on.  This is the sequence I’ve tried:

System - (chose the room I want eg Living Room) - Set up Surrounds - Continue 

It them brings up a message saying : 

Two compatible Sonos speakers are required to add surrounds.  Make sure your products are powered on and connected to WiFi

Can anyone suggest where I am going wrong :( 

Thanks