First, sorry for my english. I have a hw-n300 soundbar and a 55nu7500 tv. Both are connected via Bluetooth. When i turn on the tv, the soundbar turn on automatically. The tv detect the soundbar, but often the volume buttons of the tv control not work. When i press up/down buttons the screen show it, but not do the action. The solution is press the play/pause button of the soundbar. Then i can use the tv control. Is this an issue or im doing something incorrect? Thanks for your help.
I suggest you start by resetting the soundbar by pressing the two buttons (+ and -) on the soundbar and pair the soundbar with your TV again.
I'm having a similar issue but my combo is connected with an optical cable. When I press volume up the optical icon comes on the screen but the volume does not rise. It's hard to hear the dialogue.