9 Problem Solving
106
Internet/Intranet Connection
This section explains the troubleshooting procedures and restrictions while using
Internet and intranet connections.
Troubleshooting
The possible problems and actions are as follows.
When you cannot connect to the Internet/intranet
When you cannot connect to a web server
Problem
Action
The IP address is not set
correctly.
Check the IP address setting. If the IP address is not set
correctly, supply a fixed IP address, or use DHCP or Autonet
to assign an IP address.
The IP gateway address is
not set correctly.
Enter the correct IP gateway address if connected to a proxy
server or a web server through an IP gateway.
The subnet mask is not set
correctly.
Enter the correct subnet mask that matches the operating
environment.
The network drops out or is
disconnected.
Check the network cable connections. A spanning tree
environment is recommended to construct a strong
environment against network interruptions.
Cannot communicate due to
the load on the server
application.
Wait a while and try again.
Cannot connect due to proxy
server, firewall, or web server
access restrictions.
Check if any of the following access restrictions are set.
• Address (port) restrictions
• SSL usage restrictions
• User access restrictions (including access privileges)
• Content blocking
• Scheme restrictions (for example, HTTP disable)
• Transfer data size restrictions
• Used method restrictions (for example, POST disable)
• HTTP header restrictions (for example, specific browsers)
• Time restrictions (for example, time-limited access)
NOTE:
SSL is not supported on the machine.
Problem
Action
The settings are not for using
the proxy server.
In a proxy environment, the web server cannot be connected
without the proxy server settings. Enter the settings for using
the proxy server.
The settings are for using a
proxy server in a non-proxy
environment.
For environments where connecting via a proxy is not
required, such as connecting to an intranet, the settings
should not be set for using a proxy server.
The proxy server address is
not set correctly.
When setting up a proxy server, the web server cannot be
connected if the proxy server address is not set correctly.
Enter the correct proxy server address.
The user name and/or
password are entered
incorrectly when proxy server
authentication is set.
Register the user name and password on the machine to
grant connection access to the proxy server.
Summary of Contents for WorkCentre 5020
Page 1: ......
Page 6: ...6 ...
Page 10: ...1 Before Using the Machine 10 ...
Page 22: ...2 Maintenance 22 ...
Page 32: ...3 Using CentreWare Internet Services 32 ...
Page 36: ...4 Job Status 36 ...
Page 52: ...6 Printer Environment Settings 52 ...
Page 64: ...7 Scanner Environment Settings 64 ...
Page 126: ...10 Appendix 126 ...