I have 3 computers on 2 of them I see all 3 computers under network but my computer can only see my computer and my netbook, cannot see my wife's computer
all computers see all 3 computers
why do I...

I have 3 computers, 2 of the computers can see the other computes in both the network and home group, my computer that I created the homegroup on can see all, but cannot see all 2 computer only 2
I...