What I'm trying to do seems pretty simple on the face of it -- create a
UDP listener on a particular port.  My code is as follows:

int port = 9000;
IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, port);
UdpClient listener = new UdpClient(endPoint); // or new
UdpClient(port);

while (true){
    byte[] bytes = listener.Receive(ref endPoint);
    ...
}

Unfortunately, my code never gets past the receive statement.  I know
the data is coming into the machine, and a Java version of the same
code works just fine with the same server side resources.

What am I doing wrong here?  I've looked at several past threads on the
same topic area and tried each and every suggestion, to no avail.

Help!

Thanks

Sandeep