Deploying RHOCP on vSphere 7

hello Experts,

i am trying to deploy redhat openshift container platform 4.5 on my vSphere 7 lab.
i wen through the steps mentioned in the documentation for IPI deployment and have started the deployment installer.

the installer deploys the Bootstrap machine and 3 master nodes and hangs at
"DEBUG Still waiting for the Kubernetes API: Get https://api.occluster.vmware.lab:6443/version?timeout=32s: dial tcp 192.168.216.42:6443: connect: no route to host"

the api ip address takes too long to be assigned to the bootstrap machine and it is assigned after the installer fails to deploy the cluster and generate the logs.

seems that master nodes are trying to get the ignition files from the bootstrap machine, but there is no route to host

after the deployment fails, the api address is accessible and the master nodes complete the configuration, but the worker nodes don't complete configuration at all
attached are the logs for you reference

appreciate your feedback