Help! S voice no conection

[AC Question]

My s Voice works fine with wifi turned on. If wifi is turned off or Im in my truck driving, its says no connection. When Im driving is when I need to use it, hands free. It was working no problems, now it's not. I have the galaxy 3gs

 

[UJ95x]

With WiFi off, is cell data working otherwise? Like for browsing the internet?

Sent from my Galaxy S4 running SOKP 4.4.2