I have a CHS 335HDC STB and I'm using an HDMI cable to connect it to my Vizio 39" Class LED Smart T.V. MODEL NUMBER: E390I-A1. I can get audio perfectly fine from watching Netflix on it from one of the apps and from my computer as well but not from the STB. I have checked if it was on mute and if the cords were connected right I have tried 3 different HDMI cables and different connection ports on my T.V. but have had no luck. The only time I can get audio is if I unplug the STB completely from the outlet wait 15 seconds and re-insert the HDMI cable and turn it back on but the audio only lasts for about a minute before shutting off again. I have tested it on many different channels HD and not HD but the same problem is still happening. I read online about accessing a user settings menu to change the audio from dvi/hdmi to hdmi only but I can't seem to access the menu. If anyone has a similar problem to this or knows how to fix this please help thank you.