Stuck at "Waiting for API to be available"

After reading this post , I got rid of K8s V1.21 after it was stuck at “Waiting for API to be available” . Based on the suggestion, retried the setup after thoroughly cleaning all docker residue from the nodes [Rancher V2.6.3 with K8 1.20.13] now again it seems to be stuck at “Waiting for API to be available” . Please help .