I'm having similar problems. Adjusting inputs on the remote doesn't result in TV sound working though. The only function that works is the bluetooth from my phone, which is not nearly as loud as it should be... I have to crank my phone and soundbar volume unreasonably high.
Are the lights on the front and top of your soundbar yellow?
I have a Vizio TV and have connected the Bar 48 via HDMI-ARC. Initially, after turning the TV off then back on, the sound does not work and the power to the soundbar doesn't cycle like it used to. All TV settings are correct, so I initially unplugged and replugged in the soundbar. That worked a few times. Now, my TV won't recognize the soundbar at all via CEC.
Think it could be a Vizio update that got pushed to the TV?
This is crazy...
