LDAP Authentication

A TWAIN operation occurred during authentication.

• Make sure no other user is logged in to the machine, and then try again.

Failed to encrypt a password.

• A password error occurred.

  Make sure the password is entered correctly.

• Either [DES] or [AES] is selected for "Driver Encryption Key: Encryption Strength".

  You can make access by specifying the driver encryption key.

• A driver encryption key error occurred.

  Make sure that the encryption key is correctly specified on the driver.

A user attempted authentication from an application on the "System Settings" screen, while only the administrator has authentication privileges.

• Only the administrator has login privileges on this screen.

• Log in as a general user from the application's login screen.

An authentication error occurred because the user name contains a space, colon (:), or quotation mark (").

• Create the account again if the account name contains any of these prohibited characters.

• If the account name was entered wrongly, enter it correctly and log in again.

An authentication error occurred because the Address Book is being used at another location.

• Wait a few minutes, and then try again.

The account is locked because the number of allowed authentication attempts has reached its maximum.

• Ask the user administrator to unlock the account.

An authentication error occurred because the Address Book is being used at another location.

• Wait a few minutes, and then try again.

Failed to obtain user information in LDAP search.

• The search conditions for the login attribute might not be specified or the specified search information is unobtainable.

• Make sure the login name attribute is specified correctly.

An authentication error occurred because the user name contains a space, colon (:), or quotation mark (").

• Create the account again if the account name contains any of these prohibited characters.

• If the account name was entered wrongly, enter it correctly and log in again.

Authentication cannot be completed because of significant numbers of authentication attempts.

• Wait a few minutes, and then try again.

• If the situation does not improve, make sure that an authentication attack is not occurring.

• Notify the administrator of the screen message by e-mail, and check the system log for authentication attack potentials.

Authentication is disabled in the LDAP server settings.

• Change the LDAP server settings in administrator tools, in "System Settings".

There is an error in the LDAP authentication settings, LDAP server, or network configuration.

• Make sure that a connection test is successful with the current LDAP server configuration.

  If connection is not successful, an error in the network settings might have occurred.

  Check the domain name or DNS settings in "Interface Settings".

• Make sure the LDAP server is specified correctly in the LDAP authentication settings.

• Make sure the login name attribute is entered correctly in the LDAP authentication settings.

• Make sure the SSL settings are supported by the LDAP server.

A login user name or password error occurred.

• Make sure the login user name and password are entered correctly.

• Make sure a usable login name is registered on the machine.

  Authentication will fail in the following cases:

  If the login user name contains a space, colon (:), or quotation mark (").

  If the login user name exceeds 128 bytes.

There is an error in the simple encryption method.

• Authentication will fail if the password is left blank in simple authentication mode.

  To allow blank passwords, contact your service representative.

• In simple authentication mode, the DN of the login user name is obtained in the user account.

  Authentication fails if the DN cannot be obtained.

  Make sure there are no errors in the server name, login user name or password, or information entered for the search filter.

Kerberos authentication failed.

• Kerberos authentication settings are not correctly configured.

  Make sure the realm name, KDC (Key Distribution Center) name, and supporting domain name are specified correctly.

• The KDC and machine timing do not match.

  Authentication will fail if the difference between the KDC and machine timing is more than 5 minutes. Make sure the timing matches.

• Kerberos authentication will fail if the realm name is specified in lower-case letters. Make sure the realm name is specified in upper-case letters.

Authentication timed out because the server did not respond.

• Contact the server or network administrator.

• If the situation does not improve, contact your service representative.

The authentication server login name is the same as a user name already registered on the machine. (Names are identified by the unique attribute specified in the LDAP authentication settings.)

• Delete the old, duplicated name, or change the login name.

• If the authentication server has just been changed, delete the old name on the server.

Authentication failed because the user name contains words that cannot be used by general users.

• Do not use "other", "admin", "supervisor" or "HIDE*" in general user accounts.

An authentication error occurred because the Address Book is being used at another location.

• Wait a few minutes, and then try again.

Authentication failed because no more users can be registered. (The number of users registered in the Address Book has reached its maximum.)

• Ask the user administrator to delete unused user accounts in the Address Book.

An authentication error occurred because the Address Book is being used at another location.

• Wait a few minutes, and then try again.

Automatic user registration on the server failed when an access from the client using the Central Management function was authenticated.

• Check the network connection between the client and the server.

• Users cannot be registered while the address book on the server is being edited.