Crystal Management Console (CMC)
Servers
Cache Server
Minutes Before an Idle Connection is Closed
The default is 20 minutes; you can adjust it accordingly.
The Web Component Server also has a 20 minute timeout that can be changed programmatically in .csp pages, or on the command line of the WCS:
Open the Crystal Configuration Manager on the server
Select the WCS
Right-click or use the icon bar to show the Properties
In the Command field, add the argument -defaultSessionTimeout minutes