The FIPS setting might not be the same. All machines in a secure Verify Identity Access environment must be configured with the same "ssl-enable-fips" value.
Administrator response
Ensure that the value for the "ssl-enable-fips" entry in the "[ssl]" stanza of pd.conf is the same on both the local machine and the machine where communication is attempted. If the problem persists, check IBM Electronic Support for additional information - https://www.ibm.com/mysupport