Here is the jndi.properties java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces java.naming.provider.url=jnp://:1099 And the client code to call the EJB's. | Context context = getContext(); | LoginEJB3 loginEJB3 = (LoginEJB3)context.lookup("LoginEJB3Bean/remote"); | in the jboss jmx interface, I can see the EJB deployed ... Global JNDI Namespace | | +- LoginEJB3Bean (class: org.jnp.interfaces.NamingContext) | | +- remote (proxy: $Proxy65 implements interface com.sbe.ejb.session.LoginEJB3,interface org.jboss.ejb3.JBossProxy) | If I call the ejb from an application server or a java application the error is the same. If I run the two serveur (tomcat on different port and jboss 4.2.2), it work propertly. If you need more details tell me. Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4145741#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...