audio/video sync

[Awist]

Hello,

Is there any known problem with desynchronization video and audio? like 1-2 sec difference. It's not frequent but still.
Changing channel sometimes fix it but it's not a solution

We are using STB s530 with latest 4.3.15 version

Thank You.

[ftor]

Hello,

What is a type of your stream, what is a your middleware provider?