While I was enabling enabling Workload Management (Tanzu) on vSphere 7.0 U1 with NSX, I hit an error. Error configuring cluster NIC on master VM. This operation is part of API server configuration and will be retried. This isn’t a particularly complicated fix but I wanted to document the steps taken to find the issue. TL;DR: Enabling Workload Management on vSphere 7.0.1 with NSX-T deploys a medium Load Balancer.