Hello, With 'all' server configuration, you can't able to run the EJB3. So, For running EJB3 Applications, you should install 'EJB3' Server Configuration while you are selecting the Server Configuration at the time of Installation by using jems installer jar. The error denotes, the ports are already bound. Are you running more than one jboss server at a time?? If so, stop all the jboss servers and start only one instance of jboss. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3986390#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...