Picture but no sound

I have a WD live and I connected a WD My Book Essential 2T to it and it worked fine until I did the last upgrade. I was watching a movie that I didn’t complete on the new upgraded and I shut everything down and later turned everything on and I only got a picture but no sound.  If anybody has any suggestions or solutions I thank you in advance for your help. Thanks Wader


This issue happens with all your files? Have you try resetting the device?