So I found the answer here: http://www.jboss.org/community/docs/DOC-12519 I guess at some points, JBoss returns different addresses to the client which it then uses to make different connections. My setup was returning my internal 192.168.1.2 address, so these were not working. The solution was to change some configuration to return my WAN IP instead of my internal one. However, now I can't connect from any computer on my network. Anyone know how to configure JBoss so it is accessible both behind and outside a firewall? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192661#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...