Hello, Assume that, you have created "Messaging" server configuration from "all" server configuration which contains clustering option. To prevent from joining other cluster nodes from "Messaging" configuration do any one of the following option. 1. Copy "Default" server configuration as "Messaging" Server configuration and do the needed changes for Messaging and run the server. It won't produce cluster problem. (or) 2. Keep your "Messaging" Server configuration as such and start the JBoss AS as follows. This might solve your problem. run.sh -c messaging -g server1 -u 228.1.2.3 For more information refer http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4016181#... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4022838#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...