My Book Studio 4TB USB3 keeps ejecting from New Mac Pro

I had a USB3 My Book Studio plugged into a Mid 2010 Mac Pro . When I upgraded to the New Mac Pro last week , I was excited to get the increased speed of USB3 . However , the drive is constantly ejecting itself . I have serached forums all over the net and this seems to be a common problem. I have shut the sleep functios off from the drive and the computer, to no avail. Please can someone help. Many Thanks.


Make sure the drive is plugged in directly into a wall outlet. Sometimes an extension cord, power strip or surge protector are the cause of this issue.