RemoteDeviceDiscoverer can't find all devices connected

[wangdong2023]

Hi, we are using RemoteDeviceDiscoverer to find all connected bacnet devices, but some are missing from time to time. We are listening on 0.0.0.0/24, and sending WhoIs to broad cast address.

We use wireshark to capture the network, the devices all answered to the WhoIs request.

Is this reported before? What could go wrong?

`
private synchronized LocalDevice getLocalDevice() {
try {
int deviceId = new Random().nextInt(10000);
log.info("Local device id {}", deviceId);
localDevice = new LocalDevice(deviceId, new DefaultTransport(ipNetwork)); // e.g. ip 0.0.0.0, broadcast address 192.168.0.255
localDevice.initialize();
} catch (Exception e) {
log.error(e.getMessage(), e);
throw new CustomizeException(e.getMessage());
}

  return localDevice;

}

private List getAllRemoteDevices(LocalDevice localDevice) throws InterruptedException {
RemoteDeviceDiscoverer remoteDeviceDiscoverer = new RemoteDeviceDiscoverer(localDevice, remoteDevice -> {
log.info("found {} {}", remoteDevice.getInstanceNumber(), remoteDevice.getAddress().getMacAddress().getDescription());
});
remoteDeviceDiscoverer.start();

    Thread.sleep(3000);

    List<RemoteDevice> remoteDevices = remoteDeviceDiscoverer.getRemoteDevices();

    remoteDeviceDiscoverer.stop();
    log.info("Found {} devices: ips are {}", remoteDevices.size(), remoteDevices.stream().map(rd -> rd.getAddress().getMacAddress().getDescription()).collect(Collectors.joining(",")));
    return remoteDevices;
}

`