In ./deploy/jmx-console.war/WEB-INF/web.xml: <param-value>UDP(ip_mcast=true;ip_ttl=16;loopback=false;mcast_addr=${jboss.partition.udpGroup:228.1.2.3};mcast_port=${jboss.partition.udpPort:45566}):

Should not be jboss.partition.udpPort as that property should NOT be set; it will cause all channels to use the same port.

Will switch it to jboss.jmxconsolepartition.mcast_port to be consistent with JBAS-4021 usage.