Why after updated to latest version, not able to backup

WD my cloud not able to backup to mybook

using USB 3.0, 

My Book 1230

Manufacturer Western Digital

Model My Book 1230

Firmware Version 1.065

Hello, welcome to the community.

I’m sorry to hear that you are unable to perform a backup from the My Cloud to the My Book. Do you receive an error message? What exactly does it happen?