Thanks Marc. I've notice that the error I mentioned happens sometime only when one server is brought down, putting the client in a bad state where the cached stub continuously fails to reconnect properly. The only way to get the client program to work again when in that state, is to reconnect with a new initial context and lookup. I've put code in to do that, but was hoping that there was a better way. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3973606#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...