I was going crazy trying to figure out what Windows 7 settings, firewall, AV was preventing be able to see other devices (computers, PC & MAC) NAS, HP WIndows Home Server in "Network Neighborhood" on my new installation of PD 5 and Windows 7, finally a clue came from another post on the subject of not having an internet connection work. the suggestion was in PD5 change Device/Network Adapter from "Shared" (default) to Bridged Network. Viola! They all showed up. Hope this helps and saves somebody a lot of wasted time. My upgrade from PD 4 to PD 5 that already had WIndows 7 on it went pretty easy. Only drivers have been issues and more with Windows 7 then PD 5. Fingers crossed.