APNS SSlStream身份验证失败，因为远程方已关闭传输流

apnsStream.AuthenticateAsClient(
    this.Host, this.certificates, 
    System.Security.Authentication.SslProtocols.Ssl3, 
    false
);

apnsStream.AuthenticateAsClient(
    this.Host, this.certificates, 
    System.Security.Authentication.SslProtocols.Ssl3 | System.Security.Authentication.SslProtocols.Tls,
    false
);

            using (TcpClient client = new TcpClient())
            {


                client.Connect("gateway.sandbox.push.apple.com", 2195);


                using (NetworkStream networkStream = client.GetStream())
                {
                    try
                    {

                        SslStream sslStream = new SslStream(client.GetStream(), false);


                        try
                        {
                            sslStream.AuthenticateAsClient("gateway.sandbox.push.apple.com", "gateway.sandbox.push.apple.com", SslProtocols.Default, false);
                          //building messages
                          sslStream.Write(msg);
                          sslStream.close();