I have an office desktop using xp. Recently I bought a laptop running Windows 7. I set the laptop up for the wireless router ... no problem there, the internet is visible, but I can't see my xp machine, which is connected to the router by network cable. The XP machine can also connect to the internet properly, but it can't see the laptop. The laptop is set up for home network, meaning that it is visible, and file and printer sharing is allowed on the windows xp machine.
Why can't my computers see each other?