From time to time, the Agent Status column in the Servers view might indicate that an agent computer is disconnected, which means the management server is unable to communicate with the computer. While in this state, you cannot run Knowledge Scripts against the computer. In the background, the management server periodically checks whether it can communicate with the computer. Once the management server reestablishes communication, the status of the agent computer returns to its normal Online state.
Instead of waiting for the management server’s next polling interval, you can check the communication with an agent computer yourself. You might want to do this if you shut down a computer to perform some maintenance. When you reboot the computer, you can check the connection immediately rather than wait for the management server.
To check the status of an agent on an agent computer:
In the Enterprise Layout view of the Navigation pane, select the computer with the agent you want to check.
In the Tasks pane under Server Tasks, click Request Agent Communication Status Verification.
In the System Status pane, in the Command Queue, check the queue to see if the status request succeeded or failed.
If an agent computer’s agent status remains unknown for more than twenty minutes, check for network communication problems and the availability of the management server, QDB, and the agent computer itself. If the availability of the agent computer isn’t a network connection problem, you might need to use the NetIQctrl utility to track down the source of the problem. For more information about using NetIQctrl, see the Administrator Guide for AppManager, available on the AppManager Documentation page.