As title says i'm unable to download apps/games with my wifi connection in my nokia lumia 520 handset. Even i'm unable to browse in UC browser with my wifi connection but i'm able to browse everything in Internet explorer with same wifi connection at same time which clearly prove my wifi is connected and woking fine but why I cannot download apps/games and why i cannot use installed whatsapp, installed paytm, etc.. even my microsoft account can't be loged in with my wifi connection. So, please some one guide me or help me to come out of this problem, i really need to fix this as i need to download some games(which are recommend to download using wifi) all the time.

Thanks in advance.