Music skipping "sometimes" using air play through iPad and Apple TV ...

Using iPad latest version and 6.1.2 os.

Using Air Play to send music to my home cinema via Apple TV.

Works fine with Songza or Discovery for a while, then at some point it stops working properly. The music skip beat like I have problems with my wi-fi, but funny enough Youtube works great all the time sending music and videos, even when other music apps are experienting problems ...

Wi-Fi signal is strong ... Whats te issue ???