Brian, Thanks. I got it to work. My UDP configs for cluster-service.xml and jboss-service.xml weren't conflicting. However, my TreeCache configuration was colliding with cluster-server.xml. Thank you. You also mentioned making the ParitionName different from ClusterName. Could you explain how they are used? I thought Partition and Cluster were used almost interchangeably. If I add another TreeCache configuration, should that have another unique PartitionName? Does this mean that different components in JBoss node can be part of different JBoss clusters? Thanks again, Jennifer View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3973114#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...