Did you check the permissions on /etc/hosts? http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4121889#... For your telnet output, you did not post the last line which looks something like this: UnicastRefHostName♦J«&Åεz0r∞å╖XM☺"jç⌐IÇ☺x Note that the host name ("HostName" in this example) appears right after UnicastRef, and that name must be accessible from the client. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4243079#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...