Ok so when I bought my Sonos beam, it connected to my remote and I was able to adjust my volume.
Something has happened (I think my son tried to do something and it didn't work) and now whilst the remote works fine with the V6 box in terms of changing channels etc it's not connected to the Sonos to change the volume.
When I click channel the light is red. When I click volume it's the yellow / green colour.
I've tried reconnecting through Sonos app but not recognizing the remote.
I've tried resetting the remote holding TV+Rewind, but nothing happens.