User`s guide

Self-diagnostic Display
9-7
Troubleshooting
9
Remedy 4 If <Login Information> is set to ‘Use (security authent.)’ for the LDAP server,
check whether UDP (User Datagram Protocol) packages are blocked by the
filter.
Cannot connect to the server because timer settings for this device differ to those of the
selected server.
Cause The time setting of the LDAP server and the time setting of the machine are
more than five minutes apart.
Remedy The machine cannot connect to an LDAP server if the time setting of the server
and the time setting of the machine are more than five minutes apart with
<Login Information> set to ‘Use (security authent.)’ for the LDAP server. Check
the time settings on the server and the machine.
Cannot find the selected server. Check the settings.
Cause 1 The IP address that the machine should connect to cannot be determined.
Remedy 1 Check the DNS (Domain Name System) server settings. (See Chapter 2,
“Connecting the Machine to a TCP/IP Network,” in the System Settings Guide.)
Remedy 2 Check whether the DNS server’s DNS settings are correct.
Cause 2 If <Login Information> is set to ‘Use (security authent.)’ for the LDAP server, the
machine cannot determine the host name.
Remedy Check the DNS (Domain Name System) server settings. (See Chapter 2,
“Connecting the Machine to a TCP/IP Network,” in the System Settings Guide.)
Check the TCP/IP.
Cause 1 The machine’s TCP/IP is not operating.
Remedy Check the IP address settings (IP address, DHCP, RARP, BOOTP). (See
Chapter 2, “Connecting the Machine to a TCP/IP Network,” in the System
Settings Guide.)
Cause 2 The machine and the network cable are not properly connected.
Remedy Check that the network cable is properly connected between the machine and
the network.