Expand the Configuration node to select the HTTP Service node.
Click the Keep Alive tab.
Define the Keep Alive settings as follows:
Thread Count: Enter the number of keep-alive threads to be used. The default is 1.
Max Connections: Enter the maximum number of persistent connections to be maintained. The default is 256.
Time Out: Enter the maximum number of seconds for which a keep-alive connection should be kept open. The default is 30 seconds.
Click Save to save the changes, or Load Defaults to return to the default settings.