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Cylance
 application

Use the following troubleshooting steps when there are
Cylance
 application call errors or when no results are found.
  1. Ensure at least one tenant configuration has been populated, otherwise an error 500 page will be shown when trying to access the web application. In QRadar,
    Settings > Admin > CylancePROTECT and CylanceOPTICS
    . Make sure at least one tenant configuration is present.
  2. Ensure communication with the
    Cylance
     tenant is successful. When creating or editing a tenant configuration, a test connection is made when the configuration is saved. Pay attention to the result notification as it would clearly indicate whether communication is successful.
  3. Ensure proper network configuration. Ensure port is open to communicate over port 443 (i.e. HTTPS). Make sure no network or host firewalls are blocking traffic over this port.