I have looked all the issue but cannot find the issue as I'm working on https for rails on the EC2 so I have setup loading balance and security group, but it keep said instance is not working as it's mention 'OutOfService', i have look at the security group and all port is open
as it said Instance has failed at least the UnhealthyThreshold number of health checks consecutively. but when i open ip address from Ec2 dns address and it working fine