关于openfire 和 agsxmpp 客户端的连接问题

C# code

 private void btnLogin_Click(object sender, EventArgs e)        {            Jid jid = new Jid(txtJid.Text);   //用户名@服务器名            conn.Username = jid.User;                      conn.Server = jid.Server;            conn.Password = txtPassword.Text;            conn.Port = 5222;            conn.UseCompression = false;                                conn.KeepAlive = true;            conn.AutoRoster = true;                         conn.AutoPresence = true;                       conn.UseStartTLS = true;                       conn.AutoResolveConnectServer = false;            conn.ConnectServer = "localhost";            this.DialogResult = DialogResult.OK;            this.Close();        }

为什么就是无法连接呢？
可以成功连接gtalk服务器。
openfire服务器用spark可以成功连接。

[解决办法]
有一个握手时间要考虑进去～