Ok, so I've ordered a replacement unit and it's on its way to me. Great!
In the meantime I plugged in the old unit one last time before I binned it, just on the off chance that all it needed was a rest
Again, three flashy lights, no blue wireless card light, no life on the display. I left the room for about five minutes and when I came back in, the darn thing's streaming radio happily as if nothing had ever been wrong with it.
Does anyone have any idea what's going on? Am I going mental? (for the record, before I decided it was broken I had it plugged in and not working for the better part of a day)