I cannot get my Cox Contour Remote to control the audio of my Playbar any longer - it used to work. I have tried a) changing the code my remote broadcasts to, b) changed my remote to a brand new one and c) re-trained my Sonos app to receive the Cox signal 4 times and then ran an update of my Sonos system and then tried to re-train it again, 3 times. I believe everything has been tried. It no longer controls the volume level.
(I have 3 Playbars and the other two work well)