Xerox DocuCentre-III C4100 Manual page 358

14 Problem Solving
The address that does not go
through a proxy server is
incorrect.
The desired server, or the
proxy server goes down.
The network cable is not
connected, or broken.
Communication cannot be
established due to
overloading of the server
application.
An error occurs that is not
displayed on the control
panel.
Cannot access to the proxy
server, firewall, or a Web
server due to its access
control.
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356
Cause
Confirm if only addresses not through the proxy server are
set. Even if addresses not through the proxy server are set
with the FQDN format, if a server is directly accessed using
its IP address, the registered server is not excluded. Set an
address for the IP address that does not go through the
proxy server.
Even if the address that does not go through the proxy
server is directly designated, if a server is accessed using
the FQDN format, the registered server is not excluded. Set
an IP address with the FQDN format that does not go
through the proxy server.
Confirm if the desired server or the proxy server runs
properly.
Check if the network cable is properly connected. We
recommend spanning-tree configuration, with which network
disconnection rarely occurs.
Wait for a while and try to access again.
When an error occurs while a background processing is
running, no massage appears on the control panel. Display
the [Job Status] screen, or print the job history report to
confirm the result.
The following types of access control are used. Confirm the
configured access control.
Address (port) restriction
SSL restriction
User access restriction (including access right levels)
Content block
Scheme restriction (cannot use HTTP etc.)
Transfer data size restriction
Method restriction (cannot use POST etc.)
HTTP header restriction (only accepting a specified
browser etc.)
Time restriction (only available during a specific period of
time etc.)
Remedy