Kata android phone

[zheme]

Soh...i buy a kata android phone..and i really get angry bcos.. There is wifi connecting, actually my ssid is there but still i dont have wifi signal..my phone always say wifi is available but cant connect.. It just say...obtaining ip address..and disabled secured wep,, soh..wat should i do? And the name written on my phone is not wifi its wlan, instead of wifi... I hope you know... Kata android phone settings... I already search it..how to fix...its no kata android its ah....samsung.. Nokia...etc...pls help me....