one PC having connection problems

[ManDooM]

I just set up a 100M network with three computers in our home. Two of them are having no problems. The third one can't ping the othes. I go to the command prompt and type "ping -a <ip address here>" and the requests time out. I can, however, ping the problem PC from the others with a response. I tried using different ports on the switch (8-port Linksys) but it didn't fix. The problem PC is using XP Home while the others are using XP Pro Corporate. Can anyone help this newb?

 

[AkumaBao]

Do you have a firewall on this system? If so, I have no idea why you would, but it's possible for outgoing ICMP to be blocked (doubt it). Can you ping the IP of the NIC from that system? What happens if you tracert another system? Can you ping the gateway that is hooked to the WAN port of your switch? do an arp -a on one of the non-problem systems, and see if the MAC address of that system matches the MAC of the NIC in the problematic system. Also do a tracert from those systems to that IP as well. Is it a single hop? Are you using DHCP or static IPs and routes? If you are using DHCP, set your IPs statically to see if that resolves anything.