Determining if NetCache is the source of the problem

Determining the source of the problem

To determine whether the problem is due to the NetCache appliance, complete the following steps.

Note
If your NetCache appliance is configured for transparent proxying, you must perform this procedure at a computer that does not receive traffic filtered by an L4 or L7 switch.

Step	Action
1	Record the proxy configuration information from your browser or from the browser of the user reporting the problem.
2	Remove the proxy configuration from the browser.
3	Enter a URL into the browser's location field. You are requesting the URL directly from the Internet.
4	If...	Then...
	The URL is returned	Configuration errors are with either of the following: The proxy configuration in the browser The NetCache appliance See Determining configuration errors for further troubleshooting.
	The URL is not returned	The problem is with any of the following: The browser, possibly a bug The network The service provider The host machine The most common problem is that the network connection is not firmly attached to the host machine. However, problems with the machine itself can occur. See Determining other problems for further troubleshooting.

Determining configuration errors

To determine whether the problem is caused by errors in the proxy configuration of the browser or on the NetCache appliance, complete the following steps.

Step	Action
1	Check the browser's proxy configuration to ensure that the browser is set up correctly.
2	If you are using an automatic proxy configuration file, ensure that it is set up correctly and that the file name and location that are in the browser are correct. The Deployment Guide contains detailed information about using an automatic proxy configuration file.
3	If there is no problem with the browser configuration, see Verifying accessibility to the NetCache appliance.

Determining other problems

To determine if the problem is caused by any other reason, such as a bug in the browser, network, service provider, or the host machine configuration, complete the following steps.

Step	Action
1	Look for problems on your network. See Identifying and resolving network problems for more information about troubleshooting network problems.
2	Contact your service provider.
3	Contact the administrator of the target host.