Hi gadi.alaloof,

I think this thread might be similar: https://forum.infiniteautomation.com/topic/3121/unable-to-discover-a-bacnet-device-on-my-network/18

The resolution there was found in using a local bind address of 0.0.0.0 and a broadcast address particular to the network, like 192.168.1.255 for the 192.168.1.0/24 network. BACnet local device settings are on the /system_settings.shtm page

0_1518451754691_localDeviceConfig.png

It looks like that old functionality has been taken a way where we used to get the linked service in IM requests.
With 3.2.3 the stack expect IM router to Network or I Coud be Router to Network to come in order to decide about network address (Linked Service) .
Im a bit surprise since we can get the linked service when getting the IAM and make use of it.
I have a temporary fixed but expect it to be fixed officially.

Hi
I'm using bacnet4j stack from 3 tears ago and not able to unsubscribe to COV although the PDU response for unsubscribe is success.
registration is for life time and the way I Subscribe and Unsubscribe is as follow:

req = new SubscribeCOVRequest(new UnsignedInteger(1), aoid, new Boolean(true), new UnsignedInteger(0));
ocalDevice.send(d, req);

localDevice.send(rd, new SubscribeCOVRequest(1, oid, null, null));

BTW:Is the process Id number should be same ?