I moved al files off of the HD, reformatted, moved files back (nearly 2 TB so this was a days work) and not change. Thried different USB cable, no change. Used a thumb drive to test the USB ports and they work fine. My HD works with both my home computers and my office computer so its not the hard drive. I can even attach the hard drive to my laptop and stream through the WDTV Live, but the player itself will not recognize the drive when attached.
Am baffled beyond measure. I feel like I have tried everything short of replacing the WDTV Live.