Remote is doing strange things

We just got a new Samsung TV and a Wohome soundbar. Not only can we not get the FiOS remote to control the TV, almost all the remote buttons EXCEPT the volume buttons are changing the volume of the soundbar. Would love to be able to use just one remote instead of three (Fios, TV, and soundbar) but at the very least, I'd like to be able to change channels and use other buttons on the FiOS remote without the soundbar volume being affected.