Cox box not starting with Samsung sound bar
I just connected my Sony tv to a Samsung HW-Q90N sound bar via the ACR port on both units. I also connected the sound bar to an Apple tv and a Cox cable box. All connections use HDMI cables. The problem is the cable box does not work, no picture or sound when I turn off the sound bar and tv and turn the devices on at a later time. I changed the inputs for the external devices, and only the Apple tv works. The cable box will only work if I do a hard reset. Any ideas?