WD My Book after sleeping not working on iMac

#1

When the Mac wakes after sleeping for an hour or so, the external drive spins up and the partitions are shown in the finder, but they can’t be read/written to and Time Machine backups fail.
How can I fix it? Thanks

#2

Hi CarlosJG,

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#3

Hello,

I have same thing with mine. After MAcbook goes to sleep mode drive does not respond, although it is seen, the light is lit, no blinking. does not respond.
I have to pull out the cable to restart. WD doctor utility did not find any issues.

Regards

#4

Read this post, 4TB My Book Unable to access after sleep Mac
It might have something to do with WD software if you have it install in your system.