Not knowing much about the interactions between the EJB layer and the remoting framework. But here's what seems to get the problem going away aftering changing the client binding url,
clientBindUrl = "https://:443/servlet-invoker/SSLServerInvokerServlet"
The difference is to dop the host part of "0.0.0.0". Although the url is *not* a complete one missing the host part, that seems to do the trick.
Thanks.