title: Why does Elastic Load Balancing report 'Out of Service'?
body: <p>I am trying to set up <a href="http://aws.amazon.com/elasticloadbalancing/" rel="noreferrer">Elastic Load Balancing (ELB)</a> in AWS to split the requests between multiple instances. I have created several images of my webserver based on the same AMI, and I am able to ssh into each individually and access the site via each distinct public DNS.</p>
  
  <p>I have added each of my instances to the load balancer, but they all come back with the <code>Status: Out of Service</code> because they failed the health check. I'm mostly confused because I can access each instance from its public DNS, but I get a timeout whenever I visit the load balancer DNS name.</p>
  
  <p>I've been trying to read through all the docs and googling it, but I'm stuck. Any pointers or links in the right direction would be greatly appreciated.</p>