title: Azure VM Scale Set not accessible through Azure Load Balancer
body: <p>I have followed every step of this tutorial: <a href="https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/quick-create-portal" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/azure/virtual-machine-scale-sets/quick-create-portal</a>. Every parameter is the same except for region. In my case I use Southeast Asia. Also I use my own image which is just Ubuntu with NGINX installed on it without any further configuration.</p>
  <p>Now, when I try to access load balancer frontend IP, it always times out. Everytime.</p>
  <p>I tried to access the website in one of the scale-set instance from another VM (not in scale-set) in the same vnet and it works perfectly fine.</p>
  <p>I also tried to change the load balancer backend pool to use individual VM instances (created from the same image, not in the scale-set), and it worked perfectly fine.</p>
  <p>Lastly, I also tried to create inbound NAT rule and forward the traffic to one of the VM (again, created from the same image, not in the scale-set). Once again, works perfectly fine.</p>
  <p>Only if the backend pool is VMSS that's giving me trouble.</p>