I have Zone Alarm Pro and am trying to install a Maplin's 500Mbps Twin PowerLine kit. My plugin connector unti works fine with amy XBOX and I have no issies. However if I follow the installation procedure and then try to connect to the www via my laptop computer, I am informed that there arr no units to connect to. I wondered whether this may be the ZAP disabling connection? I can connect to the web worelessly without any issues though.