my brand new galaxy s4 wont connect to wifi! ever since i got the s4 about a week and a half ago it wont connect to wifi and a security notice appears when i try to turn the wifi on. the notice says "your device's security has blocked an action that is not permitted. no further action is required ." . i have tried to change the security settings and fix things but nothing that i do works . does anyone know how to fix this?