L0406-003
An authentication error occurred because the user name contains a space, colon (:), or quotation mark
(").
• Recreate the account if the account name contains any of these prohibited characters.
• If the account name was entered incorrectly, enter it correctly and log in again.
L0406-200
Authentication cannot be completed because of the high number of authentication attempts.
• Wait a few minutes and then try again.
• If the situation does not return to normal, 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 signs of an
authentication attack.
L0406-201
Authentication is disabled in the LDAP server settings.
• Change the LDAP server settings in administrator tools, in "System Settings".
L0406-202 / L0406-203 : Case 1
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, there might be an error in the network settings.
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.
L0406-202 / L0406-203 : Case 2
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.
L0406-202 / L0406-203 : Case 3
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.
8. Troubleshooting
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