phpcodertop

To isolate the layer in which the issue is occurring, information concerning kernel, firewall and network interface states will help in resolving the issue at hand.
You should be able to leverage the Web Console for the droplet to evaluate the details of the following commands.

First, we would recommend reviewing the contents of your interface configuration file. 
From here you can ensure that there is an entry for your public interface and that it contains correct information including your public IPv4 address, gateway, netmask, etc. 
If needed, you can reference the information made available to you on the 'Networking' page of your Droplet or under your web console screen to ensure this information is correct.

cat /etc/netplan/50-cloud-init.yaml

Next, you will need to ensure that your network managing service is able to pick up on these details and bring up your public interface.

phpcodertop

#!/bin/bash
#
# This script configures WordPress file permissions based on recommendations
# from http://codex.wordpress.org/Hardening_WordPress#File_permissions
#
# Author: Michael Conigliaro <mike [at] conigliaro [dot] org>
#
WP_OWNER=www-data # <-- wordpress owner
WP_GROUP=www-data # <-- wordpress group
WP_ROOT=$1 # <-- wordpress root directory

phpcodertop

Cpanel recommended configurations and tweaks after installation

# Activate license.
# Change Nameservers and Contact Information.
	- Server Configuration 
		-- Basic WebHost Manager® Setup
# Change hostname.
	- Networking Setup.
		- Change Hostname.
# Enable Quota

phpcodertop

sudo find /var/www/html -type f -exec chmod 644 {} \;
sudo find /var/www/html -type d -exec chmod 755 {} \;
sudo chgrp -R www-data storage bootstrap/cache
sudo chmod -R ug+rwx storage bootstrap/cache

phpcodertop

[
    {
        "code": "AFG",
        "name": "Afghanistan",
        "eu": false
    },
    {
        "code": "ALA",
        "name": "Åland Islands",
        "eu": false