As mentioned previously when I move the MDB into the same machines as the queues it all works and I don't see any of the errors above. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4168243#4168243 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4168243