Setup problems: AWS

Hello! I set up p2.xlarge instance at AWS on Windows 7. This instance was fine for the first time when I set up, but I cannot access again. I turned on p2.xlarge instance at AWS website and typed the following command in Cygwin, seen from the screenshot. When I tried SSH, I get an error message: Connection timed out.

I followed the AWS website document to try to solve. I am currently stuck at step 4 and 5, because I cannot find “Inbound Rules tab” and “Outbound Rules tab”. Where are they? Fundamentally, is my approach correct? Thanks.

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/TroubleshootingInstancesConnecting.html