I owe you at least several beers. And I'm coming to Neuchatel next month so hopefully I can pay up. :-) I'll apply the same to all the server:config entries; it's likely the underlying cause of the long-discussed "hudson noip test run doesn't complete" problem. http://wiki.jboss.org/wiki/Wiki.jsp?page=IPv6 discusses the known issues with IPv6 and JGroups. That page is a bit dated; looks like you've found a new twist on the problem. What JDK and OS are you running? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4103849#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...