How is the URL generated in the portlet? Is it hardcoded or generated from PortletURL? You should always use PortletURL to generate URLs targetting your portlet. If PortletURL is used, it should work properly over WSRP. If the URL is hardcoded, then it's no surprise that it doesn't work over WSRP and actually is really fragile for your portlet locally as well. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4023881#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...