QSslSocket closes connection

I have an client-server application that currently works with QTcpSocket which I wanted to migrate to QSslSocket. I followed the instructions on http://doc.qt.io/qt-5/qsslsocket.html
That is the code for the client I have:

Code:

ConnectionHandler::ConnectionHandler(QString ip, int port, QObject *parent) : QObject(parent) {
    connect(this->socket, SIGNAL(connected()), this, SLOT(connected()));
    connect(this->socket, SIGNAL(disconnected()), this, SLOT(disconnected()));
    connect(this->socket, SIGNAL(readyRead()), this, SLOT(readyRead()));
    connect(this->socket, SIGNAL(encrypted()), this, SLOT(encryptedReady()));
    connect(this->socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(SSLerrorOccured(const QList<QSslError> &)));
 
    this->ip = ip;
    this->port = port;
}
 
 
void ConnectionHandler::encryptedReady() {
    qDebug() << "READY";
 
}
 
 
void ConnectionHandler::SSLerrorOccured(const QList<QSslError> &) {
    qDebug() << "EEROR";
}
 
 
void ConnectionHandler::connectToServer() {
//    this->socket->connectToHost(this->ip, this->port);
    this->socket->connectToHostEncrypted(this->ip, this->port);
 
    if (!this->socket->waitForConnected(5000)) {
        this->socket->close();
        this->errorMsg = this->socket->errorString();
    }
}
 
 
void ConnectionHandler::connected() {
qDebug() << "connected";
    this->connectedHostAddress = this->socket->peerAddress().toString();
    this->connectionEstablished = true;
    this->localIP = this->socket->localAddress().toString();
    this->localPort = this->socket->localPort();
}
 
void ConnectionHandler::disconnected() {
    this->connectionEstablished = false;
    this->socket->close();
 
    this->errorMsg = "Connection to server no longer available";
    emit hostDisconnected();
}

And the one for the server

Code:

void ClientHandler::run() {
 
    if (!this->fd)
        return;
 
    this->socket = new QSslSocket;
 
    connect(this->socket, SIGNAL(readyRead()), this, SLOT(readyRead()), Qt::DirectConnection);
    connect(this->socket, SIGNAL(disconnected()), this, SLOT(disconnected()), Qt::DirectConnection);
    connect(this->socket, SIGNAL(encrypted()), this, SLOT(encryptedReady()));
    connect(this->socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(SSLerrorOccured(const QList<QSslError> &)));
 
    if (!this->socket->setSocketDescriptor(this->fd)) {
        emit error(socket->error());
        return;
    } else {
        this->socket->startServerEncryption();
    }
 
    this->peerIP = socket->peerAddress().toString();
    QString tmp;
    tmp.append(QString("%1").arg(socket->peerPort()));
    this->peerPort = tmp;
 
    QHostInfo::lookupHost(this->peerIP, this, SLOT(lookedUp(QHostInfo)));
}
 
 
void ClientHandler::SSLerrorOccured(const QList<QSslError> &) {
    qDebug() << "EEROR";
}
 
 
void ClientHandler::encryptedReady() {
    qDebug() << "READY";
 
}

The connection is established and I get the output when the conneted() method is called in the client. But then the connection is disconnected because of any reason and the disconnected method is called!?
Am I missing here something??