MOTU not showing up in Audio, devices

I just finished a remodel of the studio, and had to disconnect my MOTU Traveler from the computer to move it.  When reconnected, and turned on, it did not show up in audio, devices or in drivers.   I cannot find any part of the manual that tells how to add a new interface.  So, how do I go about getting it to recognize the MOTU again?  Yes, the MOTU is plugged in, getting power, and the firewire is connected at both ends.