title: Cannot access nodejs server from outside ec2 instance
body: <p>I am trying to host a web service on aws ec2 windows server 2008 r2 instance, but am unable to access the server using its public ip outside the instance. The port my application is hosted on as 3333. I have added rules for SSH, HTTP and ICMP in my security group but still cannot access it externally. 
  I can connect to the machine via RDP but cannot even ping the ip from my local machine. Is it something not supported on amazon free 12 month account?
  Have been struggling with this for a while, any help appreciated. Below attached is the snapshot for my selected security group for the instance.</p>
  
  <p><a href="https://i.stack.imgur.com/kzNFj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kzNFj.png" alt="enter image description here"></a>
  Thanks,
  Aakash</p>