New Release - Firmware Version 02.10.09-124 for My Book Live (11/17/11)

We tested sleep pretty extensively this time. It may be something else on your network. Do you have a browser window open to the My Book Live Dashboard? We do make calls to the drive from the Dashboard, so that will keep it from sleeping. Also, if you use the Quickview application, that also makes calls from time to time. Disable that app to see if it sleeps. I have been running this several months here at WD and at home and see it sleeping most of the time.