The local device name is already in use. Error cont

I found the “The local device name is already in use. Error Message. It appearsI could not reply to this post. Since this thread was never completed, I decided to tag on. If I look up this error Microsoft support engineer John Rubdy states “This occurs when one computer uses network mapping to connect to another computer to share files. http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/an-error-occurred-while-reconnecting/bbeaba83-1b8d-464d-8ea0-2743f16ba8e7. Is Western Digital (in my case WDBACG0020HCH-00) acting as a computer?

I have two computer backing up to Western Digital external drive. Is my trouble that I have the same mapped drive on both computers?

You should be able to map your WD My Book Live to several computers and run simultaneous backups at once. When did this issue start to happen?