You'll want to do some prowling in the AVOV subforum further down the home page. A quick scan there provided me with a mention of an audio issue. I'll let you do additional investigation there.
http://iptvtalk.net/showthread.php?18925-TVonline-4-ISSUE&p=148009&viewfull=1#post148009
Thank you for reply it's not the box I have Audio on apps and box. I submitted a support email they reset channels but still nothing. My only source of tv work in morning and not in afternoon 3days now