Which means that the server is not accessible. One of the probable reasons is that the server is not started. Also, try to connect to http://localhost:8080/jmx-console from the browser. If it doesn't work then the server is either not up or not listening to localhost. anonymous wrote : As per my collegues, JBOSS server is running You will have ask your colleague, how the server was started. What was the command used to start the server? Also, ask them to access the http://localhost:8080/jmx-console and see if it is accessible for them View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4131326#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...