I own an iPhone 4S with IOS 7.1.1 and started to use iCloud 2 days ago. Today, I couldn't connect to iCloud and the iTunes Store. It appears that I need a wi-fi connection to connect, but I've using my wi-fi for some time now without a problem. I can still use Google and What'sapp, but the iPhone is saying I need to have a good connection. I can use other apps that need an internet connection, but every time I open Safari it says that I need to have an internet connection. I even tried some methods to troubleshoot the problem by changing the date and time and rebooting and resetting my phone. Can anyone pls. Help me???
Sounds like it may be Restrictions which is in:
Settings -> General -> Restrictions
if this is off, check if everything is turned ON for cellular:
Settings -> Cellular -> Use cellular data for
If everything is ON, then it could be a type of profile installed for blocking these apps at:
Settings -> General -> Profiles
Remove what you don't know, let us know if you fixed it.