My Book drive is not recognized all of a sudden

I can not get my MyBook drive to show up on my desktop on my MacBookPro. That did not use to be a problem.

I have tried to connect to different USB ports etc and it is not visible in Disk Utility.

How can I fix it?


Try the steps provided on the following link:

WD external drive is not assigned a drive letter by Windows or Mac OSX and data on the drive is inaccessible