I recently upgraded from Vista to Windows 7. When I go into network sharing, the computer does not see my NAS drive nor does it see the other computer on the network which is running XP and vice versa. I've tried everything to get it to recognize the NAS and the other computer to no avail. Any suggestions? I can see the NAS from the web site but I need direct access on the router to get to it. My desktop is a Dell XPS 420. The NAS is a ReadyNAS PRo and my other computer is a home brew running XP. The router is a Cisco 800 series. Everything was working on XP, not so great on Vista and not at all on 7.