I have WD EX4100 and was using automatic updateting of OS.
After last automatic update of My Cloud OS 5.15.106 all my users are gone.
Even admin user password was gone.
Shares are there and user can still access the data.
What to do in order to restore users into user list?
I was able to login as admin and restore admin password that was before the upgrade.
best regards
Krešimir