Actually the problem is when the jboss is on machine ther then the client / producer one. In order to reproduce the problem easy I have created two more examples - long live consumer and long live producer. You can copy them into the jboss-messaging examples directory and compile/start them via ant (just like the other examples there). Note that the consumer example will exit only if you hit enter. So: 1. start the consumer 2. run the producer - You should observe that the consumer is receiving 10 messages. 3. Leave the consumer to run for a long time (some hours for example). 4. run the producer again - the consumer does not receive anything?! The two examples are available via: http://www.myjavaserver.com/~dobrin/jboss/examples.zip I think most of the consumer applications run continiously in order to process any incoming messages, but this problem breaks all such scenarios. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124675#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...