Ntp client does not work! urgent!

[kknd]

Hi, I am trying to write a ntp client which is going to connect to a time server and get the time..could'nt find qt example although it is possiple to find many c, vc++ or c# clients.. my code does connect but does not get any datagrams, have you any idea? here is my code, i need first to retrieve the time, i did not code rest of it yet.

void AtomicClock::on_TimeUpdate_clicked()
{
    QHostInfo info = QHostInfo::fromName("0.pool.ntp.org");
    QString ipAddress = info.addresses().first().toString();
    ui->ipAddress->setText(ipAddress);
    udpSocket = new QUdpSocket(this);
    udpSocket->connectToHost("0.pool.ntp.org", 123);
 
    connect(udpSocket, SIGNAL(readyRead()), this, SLOT(readPendingDatagrams()));
    connect(udpSocket, SIGNAL(connected()), this, SLOT(connectSuccsess()));
}
void AtomicClock::readPendingDatagrams()
{
    ui->statusLabel->setText("Reading...");
 
    while(udpSocket->hasPendingDatagrams())
    {
    QByteArray buffer(udpSocket->pendingDatagramSize(), 0);
    udpSocket->readDatagram(buffer.data(), buffer.size());
    QDataStream stream(buffer);
    stream.setVersion(QDataStream::Qt_4_6);
    QString newTime;
    stream >> newTime;
    ui->lineEdit->setText(newTime);
    }
}
void AtomicClock::connectSuccsess()
{
    ui->time->setText("Connected");    
    QByteArray timeRequest(48,'0');
    QDataStream out(&timeRequest, QIODevice::WriteOnly);
    out.setVersion(QDataStream::Qt_4_6);
 
    udpSocket->writeDatagram(timeRequest, QHostAddress("0.pool.ntp.org"), 123);
}

void AtomicClock::on_TimeUpdate_clicked()
{
    QHostInfo info = QHostInfo::fromName("0.pool.ntp.org");
    QString ipAddress = info.addresses().first().toString();
    ui->ipAddress->setText(ipAddress);
    udpSocket = new QUdpSocket(this);
    udpSocket->connectToHost("0.pool.ntp.org", 123);

    connect(udpSocket, SIGNAL(readyRead()), this, SLOT(readPendingDatagrams()));
    connect(udpSocket, SIGNAL(connected()), this, SLOT(connectSuccsess()));
}
void AtomicClock::readPendingDatagrams()
{
    ui->statusLabel->setText("Reading...");

    while(udpSocket->hasPendingDatagrams())
    {
    QByteArray buffer(udpSocket->pendingDatagramSize(), 0);
    udpSocket->readDatagram(buffer.data(), buffer.size());
    QDataStream stream(buffer);
    stream.setVersion(QDataStream::Qt_4_6);
    QString newTime;
    stream >> newTime;
    ui->lineEdit->setText(newTime);
    }
}
void AtomicClock::connectSuccsess()
{
    ui->time->setText("Connected");    
    QByteArray timeRequest(48,'0');
    QDataStream out(&timeRequest, QIODevice::WriteOnly);
    out.setVersion(QDataStream::Qt_4_6);

    udpSocket->writeDatagram(timeRequest, QHostAddress("0.pool.ntp.org"), 123);
}

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