> I've set SO_BROADCAST with set_sockopt but it didn't improve things.

I think that only applies to sending to the broadcast address.
 
> Is there a trick to enabling the reception of broadcast packets?

Set the bind address to INADDR_BROADCAST

	Name.sin_family = AF_INET;
	Name.sin_addr.s_addr = INADDR_BROADCAST;
	Name.sin_port = htons(potrNumber);

	Bind(rxSocket,(struct sockaddr *) &Name,sizeof(name));

Peter

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