"somejunk" wrote : I tried procedure given in the link. On node1 which I started first I get | GMS: address is App2:7800 | ** New View: [App2:7800|0] [App2:7800] | | When node2 on other machine is started, I get ChannelException: unable to setup protocol stack. | | Please help me on this further. Thanks There should be a stack trace on node2, can you post it ? Also, if you enable logging at the trace level for org.jgroups, you will see what the problem is. I suspect an incorrect bind_addr. Any chance you're using IPv6 ? Then disable it as detailed in http://wiki.jboss.org/wiki/Wiki.jsp?page=IPv6 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3982712#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...