This stack config is totally incorrect, you're missing 50%, take tcp.xml from any of the JGroups src distros... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3988206#3988206 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3988206