/var/log/vrlcm/vmware_vrlcm.log file we see Error:Exception while posting environment data: com.vmware.vrealize.lcm.common.exceptions.InvalidRequestException: Certificate not trusted for <Platform IP>VCF Operations 9.x
VCF Operations for Networks 9.x
The certificate of Networks appliance has incorrect entries, The CN is not matching the FQDN and the SAN field needed to have the DNS name and IP of the appliance added