I have a cluster installed with kubespray and have installed rancher on it. I added a user and downloaded the user's kubeconfig file. Using this kubeconfig, commands only succeed approximately 1/10 times, but it's seemingly random. For example:

kubectl --kubeconfig ~/.kube/user.config get nodes
Unable to connect to the server: dial tcp 10.1.2.100:443: connect: operation timed out

And then after a few more tries:

kubectl --kubeconfig ~/.kube/user.config get nodes
NAME    STATUS   ROLES           AGE     VERSION
node1   Ready    control-plane   4h43m   v1.25.6
node2   Ready    control-plane   4h42m   v1.25.6
node3   Ready    control-plane   4h42m   v1.25.6