Time machine cant get access to backup disc "timemachinebackup" operation cannot be finished (OSStatus error 2.)

Time machine cant get access to backup disc “timemachinebackup” operation cannot be finished (OSStatus error 2.)
It happens right after I log in. What should I do?

Please help me if you can :slightly_smiling:

When did this start to happen? What is the firmware version of your WD My Cloud and the version of Mac OS running on your system? Does this happen on a wired connection as opposed to a wireless connection? Did you map your NAS using AFP before the Time Machine backup?

It is my first Time Machine backup on WD Mycloud. I have Yosemite 10.10.5 and the firmware is v04.04.02-105. I did not try wired connection. I did not map my NAS using AFP before the backup.

Did you solve the problem? I have the same problem.