I bought a Samsung curved TV in 2018 and a soundbar (HW-M360) and everything worked seamlessly for it. The TV would control the sound bar volume no worries.
Now I have Just bought a Samsung CU8000 UHD TV and have plugged it in the same way with an optical cable. However, the new remote is unable to control the soundbar. I see the icon popup to increase the volume but nothing happens. The weird thing is, that when I use the remote from my old TV, I can control the volume.
I managed to get it working briefly when I was turning off and on the devices, unplugging the cables and finally worked when I cycled through the sources. I left the house but when I came back it no longer worked and I am unable to replicate what I did previously.
Why would the new remote not work but the existing remote work?
Thanks so much for asking about this. Have you set up the new remote as a universal remote for devices connected to the TV? You can find details on how to do this here: https://www.samsung.com/us/support/answer/ANS00089902/
