Windows 7 - Can connect to laptop from desktop, but not vice versa...

Hey guys I'm having a bit of a problem with my LAN here. I've got a desktop and a laptop both with Windows 7 on the same LAN and both have their network setting to Home. From my desktop, I am able to add a network location in My Computer to connect to my laptop. However, on my laptop I am unable to connect to my desktop. The desktop shows up in the list of network locations on my laptop but it always times out trying to connect to it and just says there was a problem with the connection.

I know the problem is not with my laptop because I am able to connect to my other PC as a network location. I really need to be able to connect to my main desktop though. Does anybody have any ideas as to what is going on here?

Are you using any type of third party firewall software and if so what?

No firewall, on my desktop I have Nod32 AV (not the security suite), and on my laptop I have Microsoft Security Essentials, but aside from that, nothing.