Cannot see Windows XP Computers

[Jisbomb]

I have got 3 computers and 2 laptops on a home network. I bought Vista machine and now am unable to see the XP machines at all. On one machine I have upgraded to Vista and I am able to see the other Vista machine as well? But I dont know why I am not able to see the XP machine? I have turned on file sharing for all and also have the same Workgroup name. Can anyone please help? Thanks

[sivaranjan]

I have got a same problem, how am I suppose to ping them? I am able to get the internet but none of the shared files that my old computer used to pick up. I am also not able to see xp pro pc from vista. I can get on the net and then i can see the vista pc from xp (but not access it). Can anyone please help us out? Thanks

[Tomthegreat]

It might be possible that the Network Map in Windows Vista does not display computers that are running Windows XP. This problem occurs if the Link-Layer Topology Discovery (LLTD) Responder component is not installed on the Windows XP-based computer. Network Map in Windows Vista makes network diagrams of the connections between network devices that can be used to troubleshoot connectivity problems. More information here - http://support.microsoft.com/kb/922120