Is your lookup code in an application deployed to JBoss or in a separate client application? If the former, get rid of all of the addToEnvironment calls. If the later, is the client application on the same system as JBoss or on a remote system? Did you update your /etc/hosts file as was suggested in my other post? Of course, substituting your IP address in for the one I used. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989059#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...