Error Code Cause Solution
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
1. There is an error in the LDAP
authentication settings, LDAP
server, or network
configuration.
1. 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".
2. Make sure the LDAP server is
specified correctly in the LDAP
authentication settings.
3. Make sure the login name
attribute is entered correctly in
the LDAP authentication
settings.
4. Make sure the SSL settings
are supported by the LDAP
server.
L0406-202
L0406-203
2. A login user name or
password error occurred.
1. Make sure the login user
name and password are
entered correctly.
2. 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 (").
Authentication Does Not Work Properly
233