Connection refused on new EC2 Instance putty

Question

I\'ve created an instance of a server on EC2 based on an AMI generated from an existing server. All goes well during the create, and I specify the same key for the new server as

Answer 1

It did turn out to be a security group/permissions issue. The default security group looks open, but actually shuts everything down, per this post:

https://serverfault.com/questions/245916/why-cant-i-ssh-or-ping-my-brand-new-amazon-ec2-instance