Nginx server blocks

Question

I'm trying to set my nginx to have 2 server blocks, one that lead to the default one atm and one that leads to my loadbalancer.

So I have set up my loadbalancer like this.

upstream backend {
  server 192.168.24.28;
  server 192.168.24.47;
}

server {
  listen 80;
  server_name MYURL

location / {
  proxy_set_header HOST $host;
  proxy_set_header X-Forwarded-Proto $scheme;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_pass http://backend;
  proxy_redirect off;
  }
}

and the default i have changed the listen to be

listen 192.168.24.30:80 default_server;

And the servers ip is 192.168.24.99

So if I understand it correctly, my settings should put the loadbalancer at 192.168.24.99 and the default at 192.168.24.30

So loadbalancer is placed correctly, but the 192.168.24.30 just gives me

ERR_CONNECTION_TIMED_OUT

Any idea what I might be doing wrong?