Craig,
The clients do not AutoStart server when booting. I did a quick check for updates, including drivers, and installed everything except for those "cumulative preview" updates that Microsoft likes to tout.
The next time I use a client, I will keep the pc running and either shut down the TV or watch another input to do some further analysis.
Do you know if MC server has a built-in logging capability to trap "events" that would force a shutdown? Maybe the act of shutting down the client PC's Bluetooth keyboard/mouse has some sort of effect................