What device do you use?
To what kind of medium do you backup?
And did you tried to use another USB port?
I just researched a little bit and it could be a problem with usb3 (Did you use usb3 port to connect the backup device?)
edit: typo
What device do you use?
To what kind of medium do you backup?
And did you tried to use another USB port?
I just researched a little bit and it could be a problem with usb3 (Did you use usb3 port to connect the backup device?)
edit: typo