I have a home network, and my laptop has lost the ability to see other computers on the network when connected by a LAN cable. It used to show the whole network, but now if I click on Start->Network, there is nothing listed except the laptop. I can still run programs and batch files that access the desktop on the network, auto-backup from the laptop to an external HD that isn't visible, and from the desktop I can see the laptop. I have refreshed and restarted both computers. Workgroup name matches and everything is shared. All computers are running Windows 7 Pro. If I take my laptop to work and plug in the LAN cable, all computers and printers are visible. I need to access the other hard drives on my home network, but I can't see them. Any advice?