Default [Q] S Voice just works with WIFI (GT-I9500)

My Samsung Galaxy S 4 has installed original ROM Kit-Kat and when I try to use S Voice it says there's no internet connection, but I can open Facebook, Gmail, Web Browser, Whatsapp, anything but this... is it something I need to set before use it??? this just works while I'm using WIFI, with data just doesn't work

thanks for the support