Oka, so I've been using the hotspot for wifi on my iPod, its been working great up until a couple of hours ago, it disconnected, and a gold symbol came up with the number '1' next to it, there's no messages in my messages folder, which is what people are saying your meant to delete to be rid of it. I just tried to put my hotspot on again and once again it just turned itself off, this is really bugging me as its been working fine up until now.
The first thing I would do is to pull out the battery and see if the hard reboot fix this issue. This could be that your service provider pushed a service book to block wifi hotspot. But did you try a battery pull yet?
Hmm, I've used it plenty of ties before, wonder why they'd only just decide to block it if that's the case, I actually didn't think about a battery pull until just before I seen this message, oops!