They are all on the same subnet.
Laptop is 10.0.1.33 , and the desktops are 35 and 37 at the end.
Also nothing special in the advanced sharing options, its just like the other 2 comps.
all default settings: Network discovery on etc.
Just changed: turn on password protected sharing to off on all computers.
Any other suggestions?
Btw I tried both using the laptop on the wireless and wired. Same results.