Why does Elastic Load Balancing report 'Out of Service'?

Question

I am trying to set up Elastic Load Balancing (ELB) in AWS to split the requests between multiple instances. I have created several images of my webserver based on the same AMI,

Answer 1

I to faced same issue , i changed Ping Protocol from https to ssl .. it worked !

Go to Health Check  --> click on Edit Health Check -- > change Ping protocol from HTTPS to SSL

Ping Target SSL:443
Timeout 5 seconds
Interval    30 seconds
Unhealthy Threshold 5
Healthy Threshold   10