When a user cannot be registered

“Auto-registration of user information has failed.”

Automatic registration of information for LDAP Authentication or Windows Authentication failed because the Address Book is full.

For details about automatic registration of user information, see "Auto Registration to the Address Book", Security Guide.

“Information for user authentication is already registered for another user.”

The user name for LDAP was already registered in a different server with a different ID, and a duplication of the user name occurred due to a switching of domains (servers), etc..

For details about user authentication, see "Configuring User Authentication", Security Guide.