We need more information to help. Assuming all computers are XP and they can ping each other by IP, can you ping each other by name? if not, have you enable NetBIOS over TCP/IP?
troubleshooting is not accessible error Troubleshooting "... is not accessible" error step by step. When try to access a remote computer, you may receive the following error messages: ...
www.howtonetworking.com/Troubleshooting/notaccessibale0.htm
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
I have several PC's on a LAN. I am unable to map any PC's drives to any
other PC. But I can use Run and the remote PC's IP address to open the
remote PC drive. I apologize that this must be a clueless newbie
question. Thank you, --Doug