I've noticed over the past few weeks that my iPhone 5 seems to occasionally completely drop the cellular data network. Like, I'll have 2-3 bars of LTE, then all of a sudden LTE will disappear and it will not connect to ANY data network for a period of time. Sometimes I have to toggle airplane mode or something to get it to come back on. When it does, I usually have a strong signal. I've even been in the city with 5 bars and it'll just drop data to nothing. No 4G, no Edge. It's done it when I've been connected to HSPA as well, so I don't think it's an LTE only thing. A toggle will get it back most of the time. It started off very sporadic, but I've noticed it occurring far more frequently of late (it happened at least 4 times yesterday). I never had any issues like this with my 4S, 4 or 3Gs. Does this sound like a potential hardware problem? A bug in 6.0.2, or possible odd carrier issues (AT&T)?