CloudLink 7.1.1: Alarm Triggered with Fatal Alert received: {48}

CloudLink version 7.1.1 reports the following alarm. However, no significant impact has been observed.

Event      KMIP client authentication
Level      Warning
Host       cloudlink-xxx
Timestamp  2022-03-15 15:37:00.977
Result     Denied
Details    Fatal Alert received: {48}

The following explains his alarm:

The TLS protocol defines fatal alert code 48.
This error means the following:
"Received a valid certificate chain or partial chain, but the certificate was not accepted because the CA certificate could not be located or could not be matched with a known, trusted CA. This message is always fatal."

If this alarm is intermittent, it might be a network issue such as some package corruption.
If this alarm is occurring repeatedly, the customer must investigate the certificate status along with the CA certificate chain.