OK. I decreased the value of UDP ip_ttl from 8 to 2 in the ../deploy/cluster-service.xml file on both the production JBoss servers and dev/test JBoss servers. I stopped and restarted all the servers. The [TreeCache] viewAccepted() messages still appear in the JBoss startup log file on the Unix production server and dev/test server. The partition_names, mcast_addr and mcast_ports are different values on the production JBoss server and dev/test JBoss servers. Do you have any other suggestions? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994327#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...