Kubectl connection refused intermittently

I took a while to see your post. I faced same issue in Ubuntu 22.04 and once changed to 20.04 my kube-system pods are not restarting intermittently. I guess Ubuntu 22.04 have some incompatibility or need some extra config to run kubelet. OBS: my Ubuntu VM are running on VirtualBox in Windows, I didnt look deeper since these envs are for personal testing/learning only.