I have a simple application which use QTcpServerand QTcpSocketfor accepting and making connections. the app is working fine on simulator server accept connections exchange data. But when i tested the app on device server listen on local host but fail to listen on WLAN ip. some one have any idea how i can make a server which listen on WLAN ip. Following is my .pro .h and .cpp files. Please Help

.pro file


Qt Code: 
  1. #-------------------------------------------------
  2. #
  3. # Project created by QtCreator 2010-11-26T15:34:52
  4. #
  5. #-------------------------------------------------
  6.  
  7. QT       += core gui network xml
  8.  
  9. TARGET = J2metest2
  10. TEMPLATE = app
  11.  
  12.  
  13. SOURCES += main.cpp
  14.         mainwindow.cpp
  15.  
  16. HEADERS  += mainwindow.h
  17.  
  18. FORMS    += mainwindow.ui
  19.  
  20. CONFIG += mobility
  21. MOBILITY =
  22.  
  23. symbian {
  24.     TARGET.UID3 = 0xe9a8f007
  25.     TARGET.CAPABILITY += LocalServices NetworkServices
  26.     TARGET.EPOCSTACKSIZE = 0x14000
  27.     TARGET.EPOCHEAPSIZE = 0x020000 0x800000
  28. }
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.h file

Qt Code: 
  1. #ifndef MAINWINDOW_H
  2. #define MAINWINDOW_H
  3.  
  4. #include <QMainWindow>
  5. #include<QTcpServer>
  6. #include<QTcpSocket>
  7. #include<QNetworkInterface>
  8.  
  9. namespace Ui {
  10.     class MainWindow;
  11. }
  12.  
  13. class MainWindow : public QMainWindow
  14. {
  15.     Q_OBJECT
  16.  
  17. public:
  18.     explicit MainWindow(QWidget *parent = 0);
  19.     ~MainWindow();
  20.  
  21.  
  22. private:
  23.     Ui::MainWindow *ui;
  24.     QTcpServer server;
  25.     QTcpSocket *serverSocket;
  26.     QTcpSocket *clientSocket;
  27.     void connectToServer();
  28.     void startServer();
  29. private slots:
  30.     void on_pushButton_2_clicked();
  31.     void on_pushButton_3_clicked();
  32.     void on_pushButton_clicked();
  33.     void newConn();
  34.     void serverSocketRead();
  35.     void clientSocketRead();
  36. };
  37.  
  38. #endif // MAINWINDOW_H
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.cpp FIle

Qt Code: 
  1. #include "mainwindow.h"
  2. #include "ui_mainwindow.h"
  3.  
  4. MainWindow::MainWindow(QWidget *parent) :
  5.     QMainWindow(parent),
  6.     ui(new Ui::MainWindow)
  7. {
  8.     ui->setupUi(this);
  9.     connect(&server,SIGNAL(newConnection()),this,SLOT(newConn()));
  10. //    connect(clientSocket,SIGNAL(readyRead()),this,SLOT(clientSocketRead()));
  11. //    connect(serverSocket,SIGNAL(readyRead()),this,SLOT(serverSocketRead()));
  12.  
  13. }
  14.  
  15. MainWindow::~MainWindow()
  16. {
  17.     delete ui;
  18. }
  19.  
  20. void MainWindow::startServer(){
  21.  
  22.  
  23.         QString ownIpAddress;
  24.         QList<QHostAddress> ipAddressesList = QNetworkInterface::allAddresses();
  25.         for (int i = 0; i < ipAddressesList.size(); ++i) {
  26.             if (ipAddressesList.at(i) != QHostAddress::LocalHost &&
  27.                 ipAddressesList.at(i).toIPv4Address()) {
  28.                 ownIpAddress = ipAddressesList.at(i).toString();
  29.                 break;
  30.             }
  31.         }
  32.         if (ownIpAddress.isEmpty())
  33.             ownIpAddress = QHostAddress(QHostAddress::LocalHost).toString();
  34.     if(!server.listen((QHostAddress)ownIpAddress,1235)){
  35.             qDebug()<<"server can not be started";
  36.  
  37.         }
  38.         else{
  39.             qDebug()<<"Server started at"<<server.serverAddress()<<"Port"<<server.serverPort();
  40.             ui->textBrowser->insertPlainText(tr("server started at : %1 and %2 ").arg(server.serverAddress().toString()).arg(server.serverPort()));
  41.         }
  42.  
  43.  
  44.     }
  45.  
  46. void MainWindow::newConn(){
  47.     char *data = new char();
  48.     qDebug()<<"New Connection";
  49.     ui->textBrowser->insertPlainText("New Connection");
  50. //    qDebug()<<"threads "<<threads.count()<<" Textbrowsers "<<textBrowsers.count()<<"Sockets "<<connections.count();
  51.     uint i;
  52.     i=1024;
  53. //    QString name;
  54.     serverSocket =server.nextPendingConnection();
  55.     connect(serverSocket,SIGNAL(readyRead()),this,SLOT(serverSocketRead()));
  56.     QByteArray block;
  57.     QDataStream out(&block,QIODevice::WriteOnly);
  58. //    QString a=tr("(iq,bhatti");
  59. ////    out<<a.toAscii();
  60. //    serverSocket->write(a.toUtf8());
  61. //    serverSocket->flush();
  62.  
  63.  
  64. }
  65.  
  66. void MainWindow::connectToServer(){
  67.     //    char *data = new char();
  68.         char *data = new char();
  69.         uint i;
  70.         i=1024;
  71.         uint port;
  72.         port = 1235;
  73.         QTcpSocket *clientSocket = new QTcpSocket(this);
  74.         connect(clientSocket,SIGNAL(readyRead()),this,SLOT(clientSocketRead()));
  75.         clientSocket->connectToHost((QHostAddress)"192.168.10.119",port,QIODevice::ReadWrite);
  76.         clientSocket->waitForConnected();
  77.         if(clientSocket->state()== QAbstractSocket::ConnectedState){
  78.             qDebug()<<"Connected to Server";
  79.             ui->textBrowser->insertPlainText("Connected to Server");
  80. //            clientSocket->waitForReadyRead();
  81. //            clientSocket->readLine(data,i);
  82. //            qDebug()<<data;
  83. //            QString datain = data;
  84.         }
  85.     }
  86. void MainWindow::on_pushButton_clicked()
  87. {
  88.     startServer();
  89. }
  90.  
  91. void MainWindow::clientSocketRead(){
  92.     char *data = new char();
  93.     uint i;
  94.     i=1024;
  96.     clientSocket->readLine(data,i);
  97.     a = tr("/n Other party Said;")+ data;
  98.     ui->textBrowser->insertPlainText(a);
  99. }
  100.  
  101. void MainWindow::serverSocketRead(){
  102.     char *data = new char();
  103.     QByteArray b;// = new QByteArray();
  105.     uint i;
  106.     i=1024;
  108.  
  109.     b = serverSocket->read(i);
  110.     if(b.at(0)=='�'){
  111.         b.remove(0,2);
  112.         //b.append('�');
  113.     }
  114.  
  115. //    QDataStream in(b2);
  116. //    for(int k=0;k<b.length();k++){
  117. //        *(data+k) = *(b+k);
  118. //    }
  119.     //data = b.data();
  120. //    a.fromUtf8(data,20);
  121.     //b.remove(0,2);
  122.     //b.append('�');
  123.     //serverSocin<<b;
  124.     //a.fromUtf8(serverSocin);
  125.  
  126.     a = b;
  127.     qDebug()<<a;
  128.  
  129. //    a = tr("/n Other party Said;")+ b.to
  130.     ui->textBrowser->insertPlainText(a);
  131. }
  132.  
  133. void MainWindow::on_pushButton_3_clicked()
  134. {
  135. //    char *data = new char();
  136.     uint i;
  137.     i=1024;
  139. //    data = ui->lineEdit->text().;
  140. //    if(clientSocket->state()== QAbstractSocket::ConnectedState){
  141. //        clientSocket->write(ui->lineEdit->text().toLocal8Bit());
  142. //    }
  143.     if(serverSocket->state()== QAbstractSocket::ConnectedState){
  144.  
  145.         QDataStream out(&b,QIODevice::WriteOnly);
  146.         out<<ui->lineEdit->text().toUtf8();
  147.         serverSocket->write(b);
  148.         serverSocket->flush();
  149.     }
  150.  
  151. }
  152.  
  153. void MainWindow::on_pushButton_2_clicked()
  154. {
  155.     connectToServer();
  156. }
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