Unable to connect to Microk8s cluster built on OCI VM with kubectl

As the title says, I am unable to connect to a Microk8s cluster built on an OCI VM with the kubectl command from local Mac laptop. Please let me know if you know more about this.

environmental information.

VM

shape："VM.Standard.A1.Flex"
CPU：2CORE
memory：8GB

OS

NAME="Ubuntu"
VERSION="20.04.6 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.6 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

network

cidr = 0.0.0.0/0
ports    = [
        "22",
        "80",
        "443",
        "6443",
        "2379",
        "2380",
        "8080",
        "10248",
        "10250",
        "10251",
        "10252",
        "16443",
        "30000-32767"
]

connection setting

kubeconfig

Paste the following into $HOME/.kube/config in local Mac.

- cluster:
    certificate-authority-data: XXXXXXXX.........
    server: https://<VM public IP>:16443
  name: microk8s-cluster
contexts:
- context:
    cluster: microk8s-cluster
    user: admin
  name: microk8s
current-context: microk8s
kind: Config
preferences: {}
users:
- name: admin
  user:
    token: XXXXXXXXXXXX.......

ports

root@masternode:~# ss -ant
State                Recv-Q            Send-Q                            Local Address:Port                               Peer Address:Port            Process            
LISTEN               0                 4096                                  127.0.0.1:10248                                   0.0.0.0:*                                  
LISTEN               0                 4096                                  127.0.0.1:10249                                   
~~
LISTEN               0                 128                                        [::]:22                                         [::]:*                                  
LISTEN               0                 4096                                          *:16443                                         *:*                                  
ESTAB                0                 0                                         [::1]:16443                                     [::1]:33314                              
ESTAB                0                 0                            [::ffff:10.0.0.57]:16443                       [::ffff:10.1.181.1]:50704                              
ESTAB                0                 0                            [::ffff:10.0.0.57]:16443                        [::ffff:10.0.0.57]:13131                              
ESTAB                0                 0                                         [::1]:33314                                     [::1]:16443                              
ESTAB                0                 0                            [::ffff:127.0.0.1]:16443                        [::ffff:127.0.0.1]:34826                              
ESTAB                0                 0                            [::ffff:10.0.0.57]:16443                        [::ffff:10.0.0.57]:62508                              
ESTAB                0                 0                            [::ffff:127.0.0.1]:16443                        [::ffff:127.0.0.1]:53818                              
ESTAB                0                 0                            [::ffff:10.0.0.57]:16443                        [::ffff:10.0.0.57]:62920

Microk8s status

root@masternode:~# microk8s status
microk8s is running
high-availability: no
  datastore master nodes: 127.0.0.1:19001
  datastore standby nodes: none
addons:
  enabled:
    ha-cluster           # (core) Configure high availability on the current node
~~
    registry             # (core) Private image registry exposed on localhost:32000
    storage              # (core) Alias to hostpath-storage add-on, deprecated

node status

root@masternode:~# microk8s kubectl get nodes
NAME         STATUS   ROLES    AGE   VERSION
masternode   Ready    <none>   40m   v1.26.4

error information

takeruyamamura@TakerunoMini .kube % kubectl get nodes
E0429 04:18:58.717595   31573 memcache.go:238] couldn't get current server API group list: Get "https://168.138.89.20:16443/api?timeout=32s": dial tcp <public IP>:16443: connect: connection refused
...

What did I try

reboot
uninstall Microk8s

What do I expect

Connectable to Microk8s from local Mac with kubectl command

Solution