I've been having problems with the ARC connection between my Samsung - 65” Class Q70D Series QLED 4K Smart Tizen TV and LG Soundbar. After lots of trials I've determined that when I connect my cable box the connection between my TV and Soundbar starts not working properly.
It starts with not always controlling the sound although it showing on the TV screen as it is adjusting. It sporadically works. Then after some period of time the sounds stops and the Soundbar shuts off.
