"clebert.suconic(a)jboss.com" wrote : Just double checking, I assume you didn' t have an issue when you updated your client? | Right, I intentionally did not update my client jar to test backwards compatibility. Once I did, my client and server connected fine. Tim, I missed the vote on this issue. I got sidetracked from upgrading our JBoss server on my project with the US Navy, and am now back to researching our upgrade options. Backwards compatibility is a major issue for us, as our clients are onboard ships, and upgrading them in tandem with the server is unfeasible. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976034#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...