I don't consider wiping the unit to be a useful way of solving upload/download problems in general and definitely not in this case.
Of course not. At least, not in a final production unit. But we all realize that Emplode and the Empeg are running beta software at this time, and beta testers have to be prepared for that kind of eventuality. Hopefully not very often, though.
Sometimes a request is being sent eight or more times before the unit understands it. There is a maximum retry count of sixteen after which emplode gives up.
In my case, the reason the unit wasn't responding to the requests was because something had gone wrong with the database in the Empeg. The bootup screen was pausing at a certain line that said something like "Loading music databases". Somehow, the Empeg managed to fix itself and the problem went away. After that, there was no trouble connecting to the unit.