Yes it is strange, because you are stock it even more so confirms it might be a signal issue. Some solid advise. Call your provider and let them trouble shoot your device and See if your signal is getting disrupted this would cause the shut off . If so, make them do something about it! If possible. I have T-Mobile and I know they will trouble shoot a signal if need be. That's the only thing I can think of that's causing the data to shut off. When I installed a different radio/ril to my device I had the very same issue. I solved it by flashing a different more compatible radio and ril for my Area. But since you're stock, see what if anything the provider can do for you. Or you can root and try to change things yourself. If that's not an option take it in for warentee exchange because a device won't work without data and something needs to be done to solve the issue! Really hope this helps. Best wishes.
sent from HTC sensation, soff, 3.33 firmware, viper Rom, sense 4.1, mugen battery. please press thanks if I helped in anyway.
Samsung Galaxy S4, Tmobile variant, m919 rooted. Please press Thank you if ive helped in any way.