Based on the log, I think the problem is that the server side closed a connection when ever it hasn't received a lease ping for more than 10 seconds. Maybe your network condition is not so good, or very busy. I suggest you enlarge the clientLeasePeriod parameter. also please set the pingFrequency like: | <attribute name="pingFrequency" isParam="true">214748364</attribute> | JBM requires this to be very large to work. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227091#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...