I have installed K8s using kubeadm on the master node. However, when I try running kubectl cluster-info I get the following response:

The connection to the server <host>:6443 was refused - did you specify the right host or port?

I did make sure that swap is off, KUBECONFIG is set properly, .kube/config is proper, it is listening on port 6443, disabled firewall. The two issues that I did find is there is no cache or http-cache files in the .kube directory, and that there is no containers running when I do docker container ls or docker ps. However, I can see that the images for the containers are available with docker image ls.

When I run systemctl status kubelet I get the following:

kubelet.service - kubelet: The Kubernetes Node Agent
   Loaded: loaded (/lib/systemd/system/kubelet.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/kubelet.service.d
           └─10-kubeadm.conf
   Active: activating (auto-restart) (Result: exit-code) since Wed 2019-XX-XX XX:XX:XX XXX; 1s ago
     Docs: https://kubernetes.io/docs/home/
  Process: 6541 ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=255)
 Main PID: 6541 (code=exited, status=255)

Checking Kubelet's logs I find (trimmed):

Started kubelet: The Kubernetes Node Agent.
kubelet.service: Current command vanished from the unit file, execution of the com
Stopping kubelet: The Kubernetes Node Agent...
Stopped kubelet: The Kubernetes Node Agent.
Started kubelet: The Kubernetes Node Agent.
F1120 04:53:12.437733    9430 server.go:196] failed to load Kubelet config file
kubelet.service: Main process exited, code=exited, status=255/n/a
kubelet.service: Failed with result 'exit-code'.
Stopped kubelet: The Kubernetes Node Agent.
Started kubelet: The Kubernetes Node Agent.
Flag --cgroup-driver has been deprecated, This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.
Flag --resolv-conf has been deprecated, This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.
Flag --cgroup-driver has been deprecated, This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.
Flag --resolv-conf has been deprecated, This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.
I1120 04:53:20.229997    9604 server.go:410] Version: v1.16.3
I1120 04:53:20.230143    9604 plugins.go:100] No cloud provider specified.
I1120 04:53:20.230154    9604 server.go:773] Client rotation is on, will bootstrap in background
F1120 04:53:20.230185    9604 server.go:271] failed to run Kubelet: unable to load bootstrap kubeconfig: stat /etc/kubernetes/bootstrap-kubelet.conf: no such file or directory
kubelet.service: Main process exited, code=exited, status=255/n/a
kubelet.service: Failed with result 'exit-code'.
kubelet.service: Service hold-off time over, scheduling restart.
kubelet.service: Scheduled restart job, restart counter is at 7.
Stopped kubelet: The Kubernetes Node Agent.
Failed while requesting a signed certificate from the master: cannot create certificate signing request: Post https://<host>:6443/apis/certificates.k8s.io/v1beta1/certificatesigningrequests:
--cgroups-per-qos enabled, but --cgroup-root was not specified.  defaulting to /
container manager verified user specified cgroup-root exists: []
Creating Container Manager object based on Node Config: {RuntimeCgroupsName: SystemCgroupsName: KubeletCgroupsName: ContainerRuntime:docker CgroupsPerQOS:true CgroupRoot:/ CgroupDriver:cgroupfs
[fake topologymanager] NewFakeManager
Creating device plugin manager: true
anager.go:39] [fake topologymanager] AddHintProvider HintProvider:  &{kubelet.sock /var/lib/kubelet/device-plugins/ map[] {0 0} <nil> {{} [0 0 0]} 0x1b6c020 0x79a0338 0x1b6ca20 map[] map[] map[] map[] map[] 0xc
[cpumanager] initializing new in-memory state store
anager.go:39] [fake topologymanager] AddHintProvider HintProvider:  &{{0 0} 0x79a0338 10000000000 0xc0001810e0 <nil> <nil> <nil> <nil> map[memory:{{104857600 0} {<nil>}  BinarySI}]}
Adding pod path: /etc/kubernetes/manifests
Watching apiserver

Lastly, I get the same error with the wrong cluster certificate, but I get an authentication error when I change the user certification.

I am unsure how to fix this.