Resetting a User Password
The ownCloud login screen displays a Wrong password. Reset it? message
after a user enters an incorrect password, and then ownCloud
automatically resets their password. However, if you are using a
read-only authentication backend such as LDAP or Active Directory, this
will not work. In this case you may specify a custom URL in your
config.php file to direct your user to a server than can handle an
'lost_password_link' => 'https://example.org/link/to/password/reset', ---- NOTE: Password changes automatically log out *all* connected browsers/devices.