Hi, I've followed the steps outlined in this wiki page to get JBoss/EJB running over http (since our client and servers are separated by firewalls). We are implementing a system that uses instrumentation by extending NotificationBroadcasterSupport (client registers as a listener to servers), this component seems to stop working after tunnelling over HTTP. Is this because rmi-over-http disables callbacks, and is there any way around this? Thanks (Reposted from Advanced Documentation) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4050794#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...