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© 2012 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO556/656/756/856(Ver03)
ERROR CODE AND TROUBLESHOOTING
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[8127] Domain authentication error: Invalid logon hours
[8128] Active Directory domain authentication error: Time delay between server and equipment
[8129] Active Directory domain authentication error: Expired Kerberos ticket
[812A] Active Directory domain authentication error: Kerberos ticket authentication error
Check item Measures
Setting
Check the account lockout setting of the server.
Classification Error item
Network error The logon hour is invalid and not available for login for domain
authentication.
Check item Measures
Setting
Check the logon hour setting for the user account noted in the Active
Directory Users and Computers window.
Classification Error item
Network error There is a difference of 5 minutes or longer between the time settings of
this equipment and the server, and therefore the login is not available for
Active Directory domain authentication.
Check item Measures
Setting
Set the time of this equipment and that of the domain controller the same.
SNTP is recommended if there is an SNTP server in the network.
Classification Error item
Network error The Kerberos ticket is expired and not available for login for Active
Directory domain authentication.
Check item Measures
Setting
Check if the Kerberos ticket on the Kerberos server is expired.
Classification Error item
Network error Login is not available for Active Directory domain authentication due to a
Kerberos ticket authentication error.
Check item Measures
Setting
Check if the user name and the password for this equipment are correct. If
the error still occurs, ask your Windows Server administrator.
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