Ricoh Pro C9100 Operating Instructions Manual page 181

• Make sure the account has been added to user group.
• Make sure the user group name registered on the machine and the group name on the DC (domain
controller) are exactly the same. The DC is case-sensitive.
• Make sure that "Use Auth. Info at Login" has been specified in "Auth. Info" in the user account
registered on the machine.
• If there are more than one DCs, make sure that a confidential relationship has been configured
between DCs.
W0406-107: Case 3
The domain name cannot be resolved.
• Make sure that DNS/WINS is specified in the domain name in "Interface Settings".
W0406-107: Case 4
Cannot connect to the authentication server.
• Make sure that connection to the authentication server is possible.
• Use the "Ping Command" in "Interface Settings" to check the connection.
W0406-107: Case 5
A login name or password error occurred.
• Make sure that the user is registered on the server.
• Use a registered login user name and password.
W0406-107: Case 6
A domain name error occurred.
• Make sure that the Windows authentication domain name is specified correctly.
W0406-107: Case 7
Cannot resolve the domain name.
• Specify the IP address in the domain name and confirm that authentication is successful.
If authentication was successful:
• If the top-level domain name is specified in the domain name (such as domainname.xxx.com),
make sure that DNS is specified in "Interface Settings".
• If a NetBIOS domain name is specified in domain name (such as DOMAINNAME), make
sure that WINS is specified in "Interface Settings".
If authentication was unsuccessful:
• Make sure that Restrict LM/NTLM is not set in either "Domain Controller Security Policy" or
"Domain Security Policy".
• Make sure that the ports for the domain control firewall and the firewall on the machine to the
domain control connection path are open.
If an Error Code is Displayed
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