You can check the status of the agent / appliance on a computer from the Deep Security
Manager console. On the Computers page, right-click the computer and click Actions > Check Status.
If you get a "Check Status Failed" error, open the error message to see a more detailed
description.
If description indicates a protocol error, it's usually caused by a communication
issue. There are a few possible causes:
-
Check whether the computer (or the policy assigned to the computer) is configured for agent-initiated communication or bidirectional communication. The "Check Status" operation will fail if you are using agent-initiated communication.
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Check that the Deep Security Manager can communicate with the agent. The manager should be able to reach the agent. See Port numbers.
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Check the resources on the agent computer. Lack of memory, CPU, or disk space can cause this error.
If the description indicates a SQLITE_IOERR_WRITE[778]: disk I/O error, there is likely
a problem with the agent computer. The most common problem is that the disk is full
or write-protected.