After Update to OS X EL Capitan my MyBook for Mac is available for 5 seconds an d the shutsdown,
every time i connect or reconnect the drive.
Before the Update my MacBook Pro 13" runs with OS X Yosemite.
Now i changes back to OS X Yosemite this Drive , MyBook, runs again very well.
Is there a new driver from WD for EL Capitain oder a new firmware Update.
Everybody who uses a MyBook for Mac should stay on Yosemite unless
WD delivers a Solution, in my opinion.