Firewall ? Does the JGroups test program work ? Ethereal/Wireshark is your friend ! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4035460#4035460 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4035460