Fantec QB-35US3-6G: losing connection while transfering files.

    Fantec QB-35US3-6G: losing connection while transfering files.

    Hi, I just bought a Fantec QB-35US3-6G. I'm having problems transfering (large) files from my pc to a harddrive in the Fantec (Western Digital 3 tb drive). I'm using the USB-cable which came with the devices. I've tried both USB-2 and -3 connections, but both fail. While transfering a filemap suddenly the transfer stalls. To get the Fantec working again, I have to pull the mains plug and then restart. And then after a while the problem occurs again. Anyone can advice me what to do? Thanks.