My MyBookLive drive mappings quit working after about a day. I keep my Windows 8.1 laptop on and logged in constantly. To get the mappings back, I have to reboot my laptop. This just started a couple of months ago. Any ideas why this occurs?
When you mapped the device , did you check to see if the reconnect at logon ? Also try to re map the unit on the computer to see if this fixes the issue.