VCF Operations 9.x
VMware Cloud Foundation 9.x
The is a current limitation with the Microsoft CA integration in SDDC Manager. If windows authentication is enabled, Microsoft CA blocks access which can affect the auto-renewal process.
Windows Authentication needs to be disabled and Basic authentication needs to be enabled as this is required by SDDC Manager. See Configure the Microsoft Certificate Authority for Basic Authentication.
Engineering is working on allowing more authentication types for SDDC Manager.
Workaround:
Manually renew the certificates in the VCF Operations before the component certificate expires.