sites login timing out issue

Sites login is timing out with in few minutes even though cs.timeout is set at 3600(1 hour). Are there any other settings need to be considered? we currently have OHS configured on WCS.

also, which logger to be set at debug in log4j.properties, in order to debug the login and logout?

Does sesion time out in cas/web.xml has any effect on timing out? below is the default configuration.

<session-config>

<!-- Default to 5 minute session timeouts -->

<session-timeout>5</session-timeout>

</session-config>