连接超时错误AWS

Question

我在尝试连接我的AWS实例时遇到以下错误，我按照下面的链接将本地计算机的IP添加到活动安全组中的入站规则列表但仍然看到问题，任何人都可以提供帮助关于如何调试和克服这个问题？

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

Possible reasons for timeout when trying to access EC2 instance

Error connecting to ec2-52-39-2-81.us-west-2.compute.amazonaws.com, reason:
-> Connection timed out: no further information