Hi Wickus- Yes, since the version you are using the default remoting configuration has changed. I would strongly recommend using the remoting configuration that comes with JBM 1.4.0.SP3. In particular, there is a known issue with JBoss Remoting control connection pinging, which might cause connections to be prematurely closed. To remedy this we increased pingFrequency to a very large number: | <attribute name="pingFrequency" isParam="true">214748364</attribute> | This may be causing your problem. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4131549#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...