Multithreaded Qt server not echoing data sent by client - c++

Question

I have a server that can handle multiple threads. The server starts and listens, but it is having trouble echoing when an incoming connection is pending.
I am using telnet to open the socket and send data to the server. However, the server only displays that it's listening, but doesn't echo any of the data I type through telnet or signify that there is an incoming connection. I shut off Windows firewall for private networks and still...nothing.
Also tried seeing if the server error string had anything useful to say, but all it is just an empty string.
This is a complete mystery to me and if anyone had anything constructive to note, it'd be much appreciated. Code for the thread and server is below.
server.cpp
#include "myserver.h"
MyServer::MyServer(QObject *parent) :
QTcpServer(parent)
{
}
void MyServer::StartServer()
{
if(!this->listen(QHostAddress::Any,1234))
{
qDebug() << "Could not start server";
}
else
{
qDebug() << "Listening...";
}
}
void MyServer::incomingConnection(int socketDescriptor)
{
qDebug() << socketDescriptor << " Connecting...";
MyThread *thread = new MyThread(socketDescriptor,this);
connect(thread, SIGNAL(finished()),thread, SLOT(deleteLater()));
thread->start();
}
thread.cpp
#include "mythread.h"
MyThread::MyThread(int ID, QObject *parent) :
QThread(parent)
{ this->socketDescriptor = ID;
}
void MyThread::run()
{
qDebug() << socket->errorString();
//thread starts here
qDebug() << socketDescriptor << " Starting thread";
socket = new QTcpSocket();
if(!socket->setSocketDescriptor(this->socketDescriptor))
{
emit error(socket->error());
return;
}
connect(socket,SIGNAL(readyRead()),this,SLOT(readyRead()),Qt::DirectConnection);
connect(socket,SIGNAL(disconnected()),this,SLOT(disconnected()),Qt::DirectConnection);
qDebug() << socketDescriptor << " Client Connected";
exec();
}
void MyThread::readyRead()
{
QByteArray Data = socket->readAll();
qDebug() << socketDescriptor << " Data in: " << Data;
socket->write(Data);
}
void MyThread::disconnected()
{
qDebug() << socketDescriptor << " Disconnected";
socket->deleteLater();
exit(0);
}

Answer 1

Which version of Qt are you using? In Qt 5, the parameter for the function incomingConnection is of type qintptr and not int. Have a look at the following links:
incomingConnection - Qt 5
Qt 5 - Multithreaded server tutorial