I have an onkyo TX-rz730 connected to the ARC HDMI port on my LG oled65c7p. Once every week or two the audio stops working and I have to re-setup the ARC configuration and it starts working again. This doesn't happen on any other TV's I own so I think this to be a problem with the LG.
Any suggstions? I am on the latest firmware on the LG and the Onkyo.