Hello, This is my first visit to this forum so maybe this question has already been answered. I have installed jboss-4.2.1.GA and jboss-messaging-1.4.0.CR3 as described in the JBoss Messaging User Guide. Also downloaded the jboss-remoting 2.2.2.SP1 and copied it to messaging/lib. The server starts succesfully, but when I try to run the Installation Validation in section 4.3 of the JBoss Messaging User Guide I get the following server error: ERROR [BisocketServerInvoker] received new control socket for unrecognized listenerId: 5c4o11h-r3h3ys-f6z135fe-1-f6z135rz-7 After this the server hangs (can not be terminated with CtrlC). The client outputs the following warning: WARN @Timer-1 [BisocketServerInvoker] org.jboss.remoting.transport.bisocket.BisocketServerInvoker$ControlMonitorTimerTask@157b46f: detected failure on con If I roll back to the original jboss-remoting.jar everything seems to work fine, the section 4.3 example runs as described in the User Guide. Have I made som mistakes during the installation since the jboss-remoting-2.2.2.SP1 does not work for me? Thanks in advance Leif Olsen My environment: WinXP jdk1.6.0 jboss-4.2.1.GA jboss-messaging-1.4.0.CR3 jboss-remoting 2.2.2.SP1 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4087968#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...