I have z30, and have an issue with a few apps. Mainly Skype and songza. They keep telling me I have not network connection which is wrong as I have full 4G. I checked the permissions and they both forced me to allow a lot of options. They all say on and are grey out so I cannot toggle then. I have deleted and reinstalled apps and restarted my phone. Nothing seems to work. Songza was working on wi-fi earlier though. What am I missing