Hi, I have had my iphone4 since september and have had no problems with it till recently. I first found out this problem when I saw that my what'sapp messages struggled to send. At first i thought it was what'sapp and maybe i should consider uninstall and reinstall what'sapp. Then i realised that it's just not working in general. My phone shows full 3G signal and i can make calls and text, just that my internet seems to not connect with my apps. I would have to turn airplane mode on and off then all my FB/what'sapp messages all come through at the same time. I'm running iOs 4.3.3, not jailbroken. I did a factory restore to my previous settings last night, didn't change anything. Any ideas?