XP Home Edition SP2. Everything is working fine, I can access internet. But when trying to set up home network with another new computer, can not access the Network Workgroup. Looking further, find out that strangely, I can ping all other ip addresses on my network or outside, but I can not ping this computer's IP address. If I ran ipconfig command, it shows the correct ip address, as I can access Internet. I can ping local host as well. When I try to ping this computer IP address, I got request timeout. I think this is the problem of not being able to complete my home network. Apprecaite your help on this.