title: SSH.NET connection issue
body: <p>I am trying to access the FTP server using SSH.NET library without any luck. I am providing same credidentials as in FileZilla which are working fine. The SSH throws errow "Socket read operation has timed out". If I use the same code as bellow but without specifying the port :21 I got an error : "User cannot authenitcated" . Can someone privide insights?</p>
  
  <pre><code>string tempHost = @"ftp.mywebsite.com";
  string tempUser = @"ftp@mywebsite.com";
  string tempPassword = @"try123";
  
  using (SftpClient sftpClient = 
         new SftpClient((ConnectionInfo)new PasswordConnectionInfo(tempHost,21, tempUser, tempPassword)))
          {
            sftpClient.Connect();
          }
  </code></pre>