Hi Milo, I'm having the same problem with Apache.NMS.ActiveMQ 1.6.3.
Looking at the code, the problem maybe due to MulticastDiscoveryAgent defining the "group" field which override the "group" field in it's parent class AbstractDiscoveryAgent. As MulticastDiscoveryAgent didn't define the property for setting group field and AbstractDiscoveryAgent does, the group parameter value in the uri will be set to the group field in AbstractDiscoveryAgent instead of the one in MulticastDiscoveryAgent. -- View this message in context: http://activemq.2283324.n4.nabble.com/Multicast-Discovery-with-non-default-group-name-not-working-tp4682758p4687397.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.