You can set the connection period for agents to specify how long they report. Settings you make on this screen apply to all registered Endpoint Servers. The default setting is 18 hours.
The setting you enter should be 5 minutes greater than the agent polling interval (ServerCommunicator.CONNECT_POLLING_INTERVAL_SECONDS.int).
To configure the agent connection status
1 Go to System >Settings >General
2 Click Configure.
3 Locate the Agent Connection Status Configuration area.
4 Enter hours and minutes to specify how much time passes before an agent displays as not reporting.
5 Save your changes.