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The
CylanceOPTICS
agent is not communicating with
CylanceHYBRID

Verify the following items.
For all platforms:
  • Make sure that the
    CylanceOPTICS
    agent version 2.5.2100 or later is installed on the device. To do so, locate the Cylance icon (The Cylance icon) in the system tray or check the list of apps installed on the device. For more information, see the compatibility information for the
    Cylance Endpoint Security
    desktop agents.
  • Confirm that the device can reach the
    CylanceHYBRID
    application over port 8888.
For Windows:
  • Make sure the agent is configured to communicate with your
    CylanceHYBRID
    application. In the command prompt, run this command to check the registry key on the device:
    reg query HKLM\software\Cylance\Desktop /v ProxyServer
    The value should show the
    CylanceHYBRID
    DNS name and port number. For example:
    HKEY_LOCAL_MACHINE\software\Cylance\Desktop ProxyServer REG_SZ http://login.hybrid.com:8888
For Linux:
  • Confirm that you have configured
    CylanceOPTICS
    to use
    CylanceHYBRID
    as a proxy. See Install the CylanceOPTICS agent on the Linux device.
  • After performing the steps in that procedure, run the following command as root to verify whether
    CylanceOPTICS
    has established a connection to
    CylanceHYBRID
    over port 8888:
    • ss -ano | head -1 ; ss -ano | grep :8888
    • The expected output is: Expected output from the command