Have you tried binding your server instances to IP addresses? If you're just trying a two node cluster on your machine, you can probably use either a wired/wireless combination or a wired/loopback combination. The IP address approach is generally simpler as you don't have to create/use a Service Binding configuration. You also won't encounter problems that might occur where a developer uses a port for something and isn't aware that the port must also be specified in the service binding file to avoid problems when running in a cluster. For example: run.bat -c server1 -b 192.168.1.101 run.bat -c server2 -b 192.168.1.102 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3999170#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...