After windows recently updated on one of my win7 machines, i can no longer see the other 4 computers on my network. 2 win7 Pro machines & 3 XP, all in same workgroup. I can see the affected win7 machine from all the other computers and can even access its files, the affected machine can connect to the internet as well but i cannot see any of the others. Network discovery is on, but file and print sharing is not and when i click it on and say Save Changes, it does not hold the change; also under: my system settings-system properties-computer name the Network ID button is grayed out so i cannot change my workgroup name even if i wanted to. I am logged on as admin. Any one have some ideas? Thanks.