Event code:1100

Legacy Products My Cloud OS 3
2

Hello there,

See if the following links helps.

http://community.wd.com/t5/WD-My-Cloud/What-is-Safepoint-error-event-code-1100/td-p/681319

http://community.wd.com/t5/WD-My-Cloud/Safepoint-error-1100-Will-the-new-firmware-solve-the-issue/td-p/761418

Other users were experiencing the same situation as you and they were able to solve the case resetting the unit.