Adding laptop to home network?

I have a laptop at work that I'd like to be able to bring home and use there. I don't have a wireless network, so I have to unplug my PC and plug in the laptop (by plug in I mean connect physically with a network cable). But this isn't working. Is there a way I can do this? I don't need the laptop and pc to be networked - I just want to be able to use one or the other.

What I would typically be doing is bringing the laptop home on weekends. I'd like to hook it up so I can download something (for example). So I'd plug it in, download whatever it is, unplug it and switch back to using my PC. This would be an ongoing situation.

Both PC and laptop are on Windows 7 64 bit.

I realize I'm not including many details but I don't know what is pertinent. I'll be happy to add anything that would help provide a solution.

?2011-07-29T10:19:37Z

You should have to change anything if your work computer is set to use DHCP.
Go to DOS prompt and type in ipconfig /all
Check the local area connection and see if DCHP is enable.

louria2016-12-01T12:30:02Z

least complicated way is flow to regulate panel, community and sharing center, handle on the spot networks, click your community and then reproduction to usb flashcontinual then flow the community settings to the xp device

Anonymous2011-07-30T03:27:41Z

through ipconfig you can know that your system connected or not.