Qt/S60 QUdpSocket broadcast problem

[harnen]

Hi,

I'm trying to broadcast a datagram using QUdpSocket. Now I used example BroadcastSender from QT docs and it doesn't seem to work.

Socket returns "Unable to send a message" problem and datagram is not emited(checked with wireshark). It only occours when I try to broadcast to whole network (using QHostAddress:Broadcast or QHostAddress("255.255.255.255"). When I change first octet (for example on "192.255.255.255") it also works fine.

The deal is, that I want to broadcast message for all addresses assigned to the device, so I wanna use full broadcast.

I tested it only on windows simulator (S60 3rd and 5rd edition).

Here's my code:

QByteArray datagram = "Broadcast message " + QByteArray::number(messageNo);
     udpSocket->writeDatagram(datagram.data(), datagram.size(),
                              QHostAddress::Broadcast, 1111);
     statusLabel->setText(udpSocket->errorString());
     ++messageNo;

QByteArray datagram = "Broadcast message " + QByteArray::number(messageNo);
     udpSocket->writeDatagram(datagram.data(), datagram.size(),
                              QHostAddress::Broadcast, 1111);
     statusLabel->setText(udpSocket->errorString());
     ++messageNo;

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Any ideas, how to solve my problem?