Problem with usb connecting

Make sure that you always eject the USB drive before you power off the WD… If the USB Drive is not seen by the WD, unplug the WD Live, wait a 30 seconds or so and plug it back in. If that does not work,  take the USB drive and plug into your PC and see if it can access it. I was having your problem when I was not ejecting the drive correctly… cj