Symptoms:
VMware VCenter Server 6.x
VMware VCenter Server 7.x
VMware VCenter Server 8.x
VMware vSphere ESXi 6.x
VMware vSphere ESXi 7.x
VMware vSphere ESXi 8.x
In vCenter Server's Advanced Settings, vpxd.certmgmt.mode is not "vmca".
Please check vpxd.certmgmt.mode in vCenter Server' advanced Settings:
Change the ESXi Certificate Mode (vmware.com)
If vpxd.certmgmt.mode is "thumbprint", please set vpxd.certmgmt.mode to "vmca" then restart vpxd service.