This has not once worked on any of our devices, all that happens is a still picture with a spinning wheel. We have actually rung Apple in Ireland and reported the bug, they were completely unaware of the problem. They were very good and rang us back to confirm that they didn't manage to get it work either, they have passed this info on to Apple's team.
They gave us a workaround though, you have to create stream with a public web address. Not the best solution, but it is the only option at the moment.