Central Management appliance cannot communicate with Helix

Problem

The managing Helix Enterprise-enabled Central Management System appliance cannot communicate with Helix Enterprise.

Reason

The following are probable reasons for the problem:

The Central Management System appliance is not configured to use DTI connection settings, such as HTTP proxy settings.
The alert ingestion URI is not allowed.
The Central Management System appliance is behind a Network Address Translation (NAT) device that managed appliances cannot reach.
The Central Management System appliance is using SSL decryption on the connection to Helix Enterprise and a Web proxy gateway such as Blue Coat does not allow access to the alert ingestion URI.
The alert ingestion URI has not been registered correctly.

Action

To correct the problem:

Run the show fenotify integ helix command and verify that the apply-fenet-settings field is true. If it is not, run the fenotify integ helix apply-fenet-config enable command.
Add the alert ingestion URI described in Network requirements to an allowed list.
If your Central Management System appliance is behind a NAT device or a Web proxy gateway, allow access to the alert ingestion URI described in Network requirements.
If the other actions do not solve the problem, contact Trellix Technical Support to manually set the alert ingestion URI.