14 Problem Solving
438
Problem Solving
14
Internet/Intranet Connection Problems
The possible causes and remedies for problems when connecting to the Internet or
intranet are as follows:
When connection to the Internet/Intranet fails
Cause Remedy
The Authentication feature
used on the remote server is
not supported by the
machine.
Only Basic Authentication is supported by the machine. The
machine does not support NTLM/digest. For security
purposes, change to the Authentication feature using SSL.
The remote linkage services
used does not support the
model or accessories of the
machine.
Purchase products/models/accessories supported by the
remote linkage services.
The IP address is incorrect. Confirm the IP address. If the IP address is incorrect, either
set a static IP address or resolve the IP address using DHCP
or Autonet.
The IP gateway address is
incorrect.
Set the correct IP gateway address when connecting to the
proxy server, or to a Web server via the IP gateway.
The subnet mask is incorrect. Set the correct subnet mask corresponding to your
environment.
The DNS server address is
incorrect.
Confirm the DNS server address.
The DNS server selected
cannot resolve the address.
Select a DNS server that can resolve the address.
z
When connecting via the proxy server
Set the IP address of a DNS server that can resolve the
address of the proxy server.
z
When not connecting via the proxy server
Set the IP address of a DNS server that can resolve the
destination address.
The address of the address
that does not use a proxy
server is incorrect.
Confirm whether only addresses that do not use a proxy
server are set. Even if addresses not through a proxy server
are specified using the FQDN, if a server is directly accessed
using its IP address, the registered server is not excluded.
Set the address not to use a proxy server.
Likewise, even if you directly specify an address that does
not use a proxy server, if a server is accessed with the
FQDN, the registered server is not excluded. Set an IP
address with the FQDN not to use a proxy server.
The desired server, or the
proxy server is down.
Confirm whether the desired server or the proxy server is
operating correctly.
The network cable is not
connected, or broken.
Confirm whether the network cable is correctly connected.
We recommend using a spanning-tree configuration, with
which network disconnection rarely occurs.
Cannot communicate
because of overloading of the
server application.
Wait for a while and try accessing again.
An error occurs that is not
displayed on the control
panel.
Even though an error occurs during background processing,
no massage appears on the control panel. Display the [Job
Status] screen or print the Job History Report to confirm the
result.
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