4.0.3 would bind to all interfaces, localhost included, if you didn't use -b. Binding to all interfaces by default wasn't secure. Try this: run -b 0.0.0.0 which will bind to all interfaces. If you are using the "all" config that could lead to issues though, which we can get into if the above helps. I don't use Windows NLB so I can't comment on config details, beyond saying there's nothing in the AS configuration specifically oriented toward integrating with it. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4222139#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...