I have a LG OLED55B6V and bought a Bose Soundbar 700 a 3 - 4 weeks ago.
At first it worked great. Soundbar woke up when TV was turned on and I could control the volume with my regular TV remote.
2 weeks ago the connection was lost. Now the soundbar does not wake up anymore. In fact I am unable to get any sound through to the bar unless I shift to optical (which is annoying as I cannot control volume with my TV remote). Soundbar plays other sources without problems so it seems like an HDMI-ARC connection issue.
I have obviously tried turning the soundbar on and off. Removed cables. Turned SIMPLINK CEC on and off 200 times.
I am now very very frustrated.
A bottle of wine for the winner.
Thanks for your post and welcome to the community. I am very sorry to hear that you are having this issue.
I would recommend taking a look at this video here, it explains how you should have your Soundbar set up as well as some great troubleshooting methods for ARC.
Hector B - Community Support
Thank you for your reply.
Following the guide fixes the issue. Until the following day where the connection is lost again. This morning I had to unplug the bar again - restart tv - and then replug the bar. This fixed the issue.
Any ways of keeping the link between the two units?
Thanks for posting and updating us on this issue.
I would recommend taking a look at the HDMI-CEC settings inside the Bose Music App. You can do this by going to Settings > Advanced CEC > then Alternate or Off to see if this has any effect on your issue.