socket OnReceive function not called

Hi,

I`m trying to get a working socket example using MFC.... at the moment
I`m not able to receive any kind of packets...

That`s what I`m doing step by step:

1) installing a thread:

m_pClientThread =
(CUdpClientThread*)AfxBeginThread(RUNTIME_CLASS(CUdpClientThread),
THREAD_PRIORITY_NORMAL, 0, CREATE_SUSPENDED);

m_pClientThread->SetTarget(AfxGetApp()->m_pMainWnd);
m_pClientThread->SetServerName(server);
m_pClientThread->SetPort(portnumber);
 m_pClientThread->ResumeThread();

2) init socket
BOOL CUdpClientThread::InitInstance()
{
if(!CUdpSocketThread::InitInstance())
       return FALSE;

if(!m_socket.Create(m_port, SOCK_DGRAM))
       { /* failed */
        DWORD err = ::GetLastError();
        ASSERT(target != NULL);
        if(target != NULL)
           target->PostMessage(UWM_NETWORK_ERROR, (WPARAM)err,
(LPARAM)::GetCurrentThreadId());
        return FALSE;
       } /* failed */

/* ******* */
LPCTSTR Data;
char buffer[20]= {10,10,101,10,10,10,10,10,10,10,10,10,10,10,10};
m_socket.SendTo(&buffer[0], strlen(&buffer[0]), m_port,
"2.255.255.255", 0);

return TRUE;
}

When I add the SendTo method to this function: the data will be
transmitted and after that the software will call the OnReceive
method....

Here are the class references:
class CUdpClientThread : public CUdpSocketThread
class CUdpSocketThread : public CWinThread
class UdpConnectSoc : public CAsyncSocket

And that`s the small OnReceive method - only for testing

void UdpConnectSoc::OnReceive(int nErrorCode)
{
if(nErrorCode != ERROR_SUCCESS)
 { /* had error */
     AbortConnection(nErrorCode);
      return;
} /* had error */

char buff[200];
int bytes_read = Receive(buff, 200);
buff[bytes_read] = 0; //terminate the string

}

Maybe someone of you will see some errors or have some information to
get a working example. I also tested some examples from microsoft
(http://support.microsoft.com/kb/185728/EN-US/) but these are also not
working... if I set this one up this app as server and port-nbr 5000 -


active)....

best regards
Bernd