One of my computers can no longer find another computer on the network. I have tried to ping it from another computer, it can't be found.

I have checked the cable, it is still good.

How do I solve this problem? The computer runs on WinXp.

does both computers stl detect d ntwk cable? if yes, try disabling ur anti virus and firewall

Yes, it shows a network cable is connected.
The firewall is off.
I will try turning off the antivirus when power has been restored.

Note:The networking links 3 computers(1 win 7 laptop +2 winxp desktop). I was able to ping, share files and printers with all of them.
It was later that one of the desktop computers failed to appear on the network. That's why I decided to ping it to test if it is reachable.

If u are 100 percent sure hardware isnt a issue. Assign ip address staticallysee if u can ping other systems, then allow the pc to dynamically obataimn address.

persius555:
If u are 100 percent sure hardware isnt a issue. Assign ip address staticallysee if u can ping other systems, then allow the pc to dynamically obataimn address.

How do I go about assigning ip address and allowing pc to obtain the address?

jmoore:

How do I go about assigning ip address and allowing pc to obtain the address?

Go to your network connection tab option from control panel.The dialogs that pop up should be two, by default the obtain dynamic address button should be on, click it, go down and "click assign assign address" then enter any ip address that hasnt been assigned from your ip address pool. E.g 192.168.1.132.See if you can ping you gateway.IF u are sucessfull, allow the address to be dynamically assigned by doing the reverse.

^^^

The computer runs on winxp.

Here are the steps I took so far
1- Click control panel
2- Click network and internet connection
3- Click on network connections, which displays all connection

I didn't see any dialog pop-up for assigning ip

I checked the LAN setting, still couldn't find where to assign ip

been a while I used xp, but dis shld help http://m.dummies.com/how-to/content/how-to-manually-assign-an-ip-address-in-windows-xp.html where is ur location, mayb I can help out

^^^

It worked. I automatically assigned ip to it.

Thank you.

Nice.