Hi All, I have rancher 2.7.1 server setup as docker container in an EC2 instance and a minikube cluster running on another ec2 instance is imported/registered with status being Active. But now when I click on the cluster, the browser gives 500 error saying "invalid upgrade response: status code 200" rancher server container logs say the same: Proxy upgrade error: invalid upgrade response: status code 200 Also attached the screenshot of the current status. Fleet agent of the cluster says:

msg="Failed to register agent: looking up secret cattle-fleet-system/fleet-agent-bootstrap: an error on the server (\"invalid upgrade response: status code 201\") has prevented the request from succeeding (post <http://clusterregistrations.meta.k8s.io|clusterregistrations.meta.k8s.io>)"

Cluster Agent logs doesnt say anything significant related to error. can anyone please help here?

First thing I'd check is the cluster agent pod logs but you mentioned you've already done that. Any firewalls or proxies between these environments?