Advanced Threat Protection versions 3.0 and higher and Endpoint Detection 4.0 and higher may show a Health Status regarding the Secure Endpoint Communication certificate expiring or is expired.
The certificate that is expiring is the cert that ATP 2.3 and earlier used for securing the SEP Insight queries on port 8443. Since ATP version 3.0 and later, the ATP secures the Endpoint communication on port 443 with the same certificate as the web interface.
The alert is only cosmetic, the certificate referenced in the message is not used in ATP versions 3.0 and later.
As this issue only impacts EDR appliances that were originally installed as Advanced Threat protection 2.x, Broadcom Engineering has no plan to address this issue in future releases. For further relief, please do one of the following:
To reinstall with the latest EDR build