My phone will show that I have a data connection, but when I use anything that requires data I get a pop up that says I have no data connection and then the data icon will disappear. It happens whenever the phone is idle for an extended amount of time or when I have have the data toggled off your a bit. In most cases I can switch in and out of airplane mode to fix but I have had to reboot a few times when airplane mode didn't work. Is this common out do I just have a flaky phone?