The client information that is displayed in the central administration console is as current as the reports received from the clients.
Clients push reports to the administration folder and pull information from the central administration console on an interval that can be configured in the central administration console. The default interval is 1 hour. Beyond the configured interval, a client report can be delayed because of issues with the client. Some issues that can prevent the client from reporting are the following:
The central administration console scans administration folders on an interval that also can be configured in the central administration console.
The client information in the central administration console is not real-time information, but is delayed by configured communication intervals between the client and the central administration console, and can also be delayed by client issues.
You can determine the information currency for a particular client by examining the date in the Last Report column in the Health view of the Clients task.
You can define an alert condition based on the time that has elapsed since a client last reported.