title: NMSSH : iOS - Unable to establish ssh session
body: <p>I am trying to establish a SSH connection to a device using NMSSH. However, I am unable to establish a SSH connection and the error message returned isn't every helpful either:</p>
  
  <p>NMSSH: libssh2 (v1.4.3) initialized<br>
  2014-03-23 12:41:36.940 Learning[1026:3707] NMSSH: Start x.x.x.x resolution<br>
  2014-03-23 12:41:46.936 Learning[1026:60b] Session is not established<br>
  2014-03-23 12:41:46.938 Learning[1026:3707] NMSSH: Socket connection to x.x.x.x on port 22 failed   with reason -2, trying next address... </p>
  
  <p>Server IP is correct. What could be the reason, can someone provide any pointers ?</p>