I haven't had it happen, either, but based on this, and other similar threads here, I went out last week and picked up a second iPad.
I think that a lot of us that are running a DL have 2 iPads. When I got my first DL1608, I got 2 iPad 2 (s) right away. Now one has been upgraded to an iPad Air 2 to run MF 3X the way it should work, in my own personal experience.
The air 2 runs the DL wirelessly and the one remaining iPad 2 does double duty for AirPlay and back up for MF just in case. I can slot it into the dock at a moment’s notice, if, heaven forbid, the wireless goes down, the Air pooches or MF goes belly up for any reason. I even have an iPod Touch 5th Gen, with back up music too. Besides it looks cool to have 2 iPads sitting side by side running the show.
This might be a little paranoid, but as they say “anything that can go wrong, will go wrong”
It does however make running a DL just a little bit more expensive but worth it.