Westinghouse CW50T9XW to polk command bar, connected to hdmi, no sound

Nov 24, 2018
I am trying to connect POLK command bar to my westing house CW50T9XW tv. TV has 3 HDMI inputs. I am not able to get sound from soundbar from none of these. the sound bar has 2 HDMI ports and 1 HDMI arc. I used all the combinations. No sound. what am I missing? TV has no Toslink and the soundbar has only HDMI and a Toslink