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 (

) 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

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