I just bought a TU8000 Samsung TV and an LG SN8YG and set them up last week. I connected a XBOX 1 and Playstation 4 to 2 HDMI ports and the LG soundbar to the HDMI ARC port. When I initially went through setup, everything worked perfectly with the Samsung remote controlling both. Two days ago, the TV stopped seeing the ARC connection as ARC and now says Optical. I've hard reset both, switched HDMI cables to check against the game consoles, but the TV is no longer recognizing the connection as ARC or E-ARC even though the soundbar displays E-ARC. Also turning on the TV no longer turns on the soundbar as it did for the 1st week. Any suggestions?