This site can’t be reached refused to connect.

I’m trying to get nginx to work on my server. I was trying to get it to work with a more complex config, but I gave up and reinstalled it. I’m working with a really simple config here:

**File: /etc/nginx/nginx.conf **

user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
        worker_connections 768;
        # multi_accept on;
}

http {

        ##
        # Basic Settings
        ##

        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
        keepalive_timeout 65;
        types_hash_max_size 2048;
        # server_tokens off;

        include /etc/nginx/mime.types;
        default_type application/octet-stream;

        ##
        # Logging Settings
        ##

        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

        ##
        # Gzip Settings
        ##

        gzip on;
        gzip_disable "msie6";

        include /etc/nginx/conf.d/*.conf;
        include /etc/nginx/sites-enabled/*;
}

**File: /etc/nginx/sites-enabled/default **

server { listen 80 default_server; listen [::]:80 default_server;

    root /var/www/html;

    index index.html index.nginx-debian.html;

    server_name [mydomain] [www.mydomain];

    location / {
            # First attempt to serve request as file, then
            # as directory, then fall back to displaying a 404.
            try_files $uri $uri/ =404;
    }

}

I followed the instructions on: https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-16-04

I still get a This site can’t be reached [my IP] refused to connect.