1: Like I said, all computers on Windows 7 .
2: Firewall is OFF, on all computers.
3; Tried creating a homegroup on one of the desktop comptuers, the laptop cant see that homegroup and only suggests to create one.
On the other hand, when the laptop creates the homegroup, the others can see it and join it.
I tried the homegroup and network troubleshooter before with restarts, no success.