Twice I have had my mixer shut down during a show because the computer has disconnected the firewire interface. Once because the computer went to sleep and the other when the cable was accidentally knocked loose.
I can reproduce the behavior by pulling the firewire cable out of the PC with the mixer and about 75% of the time it will fail. At best, the board will pop like it was just turned on.
I have reset the firmware a couple of times.
Is this expected behavior? Does this behave the same way with a MAC?
I'm using the Win7 with the StarTech EC1394A2 Expresscard (VIA chipset).