I just noticed that whenever my iPhone 5 switches from LTE to 3G, I seem to completely lose data connection. Only turning on Airplane mode, and then turning it off seems to fix the issue, temporarily. So if my phone switches from LTE to 3G again, I have to repeat it. Also if I go into Safari I get a popup saying "Could not activate cellular data network" I'm just wondering if anyone else is having this issue? (I'm on Sprint btw) or if this is a network issue? I've reset network settings, and that didn't do anything. I'm about to do a clean install of beta 3, but I just want to make sure that its not a bug, or a network issue before I do that. I also never had this issue with beta 1/2.