title: EC2 - Unable to login with ec2-user
body: <p>I have a AWS micro instance and I had no problems logging into the instance using ec2-user until now. I changed some permissions for ec2-user (basically removed the www group it was added to and again added that group). Now I am locked out of the instance. The error I am getting is:</p>
  
  <p>Disconnected: No supported authentication methods available (server sent:publickey)</p>
  
  <p>I have checked the following and everything seems to be in place:</p>
  
  <ol>
  <li>My IP is updated in AWS security groups </li>
  <li>My key (.ppk) is the same that I have been using for months</li>
  <li>My security group has 80 and 442 enabled</li>
  </ol>
  
  <p>Please help... this is really bothering me big time!</p>