Message Cause Solution and reference
"Authentication has
failed."
W/L0511-000
W0517-000
The user registered on
the machine has the
same name as another
user distinguished by the
unique attribute of the
authentication server.
• Delete the older user that is redundant, or
change the login name.
• If the message is displayed after switching
the authentication server, delete the user
on the old server.
"Authentication has
failed."
W/L0606-004
A user name that cannot
be specified in the login
user name was
specified.
Do not use "other", "admin", "supervisor", or
"HIDE*" in user account names.
"Authentication has
failed."
W/L0607-001
Web Image Monitor or
another method was
used to edit or create a
backup of the address
book.
Wait a while.
"Authentication has
failed."
W/L0612-005
The number of users
registered in the address
book has reached the
upper limit, and auto-
registration failed.
Ask the user administrator to delete users that
are no longer needed from the address book.
"Authentication has
failed."
W/L0707-001
Web Image Monitor or
another method was
used to edit or create a
backup of the address
book.
Wait a while.
*1 When obtaining user groups, check the following:
• The user account that can obtain user groups is sAMAccountName (user). Do not use
UserPrincipalName (user@domain.xxx.co.jp) as the user name.
• Check whether the name in "Group" is correctly specified including the case-sensitivity in [Settings]
[System Settings] [Settings for Administrator] [Authentication/Charge] [Administrator
Authentication/User Authentication/App Auth.] [User Authentication Management]
[Windows Authentication].
• Select the user in the address book, press [Edit], and then check that [Unavailable] is specified for
each function under the [User Management / Others] tab [User Management] [Available
Functions / Applications].
When Other Messages Appear
311
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