Multiple My Book Duo drives shows up in finder after computer wakes up

#1

I have My Book Duo WDBFBE0160JBK-NESN and had this issue on High Siera on MacBook Pro and now I see the same issue on iMac on Mac OS Mojave.
After computer wakes up I see multiple, two or three “My Book” drives in finder, if I click on a right one I able to navigate in drive and open files. But If I click on a wrong one finder hangs and not responding.
When finder freezes even Disc Utility become disable It can’t find any drive at all.

I noticed that in Energy Saver settings I had selected “Put hard disk to sleep when possible” will try to disable it and see will it fix a problem.
But it would be very inefficient to keep drives work when they are not in use. I guess it will decreese their life time.

#2

I have exactly the same problem. I have received 2 replacements and the problem persist. I would suggest you backup all yr data before you come to a point of not being able to access it. The drives do NOT go bad the ENCLOSURE seams to be the issue.

I am looking forward for a solution.

#3

Disabling “Put hard disk to sleep when possible” didn’t help at all, still have the same issue. :frowning_face:

#4

You could try to reset your SMC, NVRAM

The link on how could be here

It has some good tips that are usefull

#5

With “WD Drive Utilities” performed all three checks in diagnostic section, all three are successful.
Mac OS Disk Utility also give positive result.

#6

I guess I fond what coursing this issue.
I had “Sleep timer” in WD Drive Utilities app turned on and set for 30 min. Seems that’s a default setting.
When I turn off slip timer I never have “Multiple drive” issue.

I also been talking with WD customer support over emails, and they are completely useless :frowning_face:
I’m showing them problem and they trying convince me it’s issue with my computer or to replace drive :man_facepalming: