"jwenting" wrote : That's a function of the firewall. No, it isn't, but thanks for your reply. I analysed the network traffic with wireshark and found that the problem is a wrong proxy configuration for IE. Accidentally, the corporate LAN segment containing the firewall is not contained in the list of direct connections. Sorry for wasting everybody's time. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972238#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...