Suddenly I have I lost all sound after what I suspect was an automatice software update .
The WDTVs don’t do automatic updates. All they do is notify of an update – you have to manually tell it to install or not.
How is your system connected? What’s the audio path? What’s the audio configuration? What’s the audio type of the files with no sound? Are files that previously played before now mute? etc.
Well after doing all the tests and cocluding that my unit had dies, I bought a new one only to discover that teh Yamaha Amp was the problem and was dieing sequentially. The HDMI ports were selectively shutting down.
Took my new TV Live back and used the Yamaha warranty to fix.