I have a jailbroken iPad 3G, and the 250mb/month data plan from AT&T. I don't use the data plan every day -- maybe about once or twice a week. I believe the last time I used it, and it worked normally, was about a week ago. Then yesterday, when I went out, and I switched on cellular data, I got the 3G signal bars, but whenever I tried to do something that required a internet connection, like open Safari, I got a message saying there was no internet connection. I know restoring and setting up as new will probably fix it, but I'm wondering if there's any other way to fix this, because I don't want to lose all my app data. I already tried restoring and reloading from a backup, which didn't work. Thanks in advance for any help!