Weird Network Problem ( Stumped)?

On my home peer-to-peer network ( 5 PC's). I have one PC that only seems partially connected to the intranet and the web. I can surf the web , and I can share it's hard-drive with other computers on the network. I can not ping it from any other computer in the house, and I can not ping anything from it ( including yahoo.com and others YET I can get to their website :-) Services like SETI , VNC, or network games, wil not work. It's like certain ports are blocked and I'm not sure how to re-open them ( even with disabling the firewall temporarily. I set all the computers on the network at the same time and for the life of me can not think of anything I did different on this one PC.





It is an old "off business lease" Dell PII , no that I'm sure that has anything to do with it. My daughters PC is an AMD based system in the same class and it has not problem... Help! any ideas?

Weird Network Problem ( Stumped)?
make sure it does not have other firewalls installed left from the company such as Black Ice, Zone Alarm or the XP firewall enabled. Also check for port blocking. Ping certain ports.
Reply:The first thing I would recommend is checking to make sure that the PC is part of the same workgroup as the rest of your machines. This can be checked by right-clicking My Computer and going into its Properties.





Next check the IP address and subnet mask of the computer.





I THINK IT'S A DNS PROBLEM!!! CHECK YOUR DNS SETTINGS. CAN YOU PING ANYTHING BY ITS IP ADDRESS?
Reply:Try a different ethernet cable,,,, if you've inadvertantly got a cross-over cable connecting it to the network you'll get this 50-50 type of connection
Reply:Can you do an "ipconfig /all" in a DOS window, and paste the result here (delete your specific IP address if it is not 192.168.x.x or 10.x.x.x)? Do this for both the faulty PC and one of the working PCs.