Need help with recognizing computers in home network

[Elemennop]

Ok, so there's three computers in my house: These three computers, A, B, and C, were set up in a network that even had problems at that time; namely, computer A could access every other computer, but B and C couldn't access A (and A had the printer...) .

Now, I replaced one of those computers recently (let's say C), and the new C could access B, but not A, B could not access A or C, and A could access B.

A couple days ago I replaced A, and the network's gone to hell; A cannot access anything, C can access B, and B is left in the cold.

It's all wired correctly to a Linksys BEFW11S4 V4 router (wireless, but it's being used wired). Computer B uses a 10/100 network card, and A and C use Gigabit LAN. All three computers work perfectly when it comes to accessing the internet, browsing webpages, and doing any sort of internet related task; however, the network is broken.

Right now the way I'm setting up the network is using the Network Places button to set one up, than choosing 'This computer connects to the Internet through another computer on my network or through a residential gateway', and the name of the network is Mshome.

Any help?

Edit> Forgot to mention that the the Linksys router is then connected to the DSL modem, which then runs out the house.

 

[networkman]

A little more info would be helpful, like what operating system is running on each of these machines.

 

[Elemennop]

Windows XP Home on C, Windows XP Pro Corporate on A and B.

 

[JackMDS]

Read first the whole page (I.e. resist the urge to click on any of the links).

Once you understand the general scope start to investigate the links that concern your specific setting.

Link to: Sharing Disk Drives Between Computers on Windows Network.

:sun:

 

[klispic]

Ditch Windows XP Home Edition... it lacks some of the networking capabilities that Pro has.