Assuming they are XP with SP2, have you enabled ping? This search result may help,
windows xp with icfCan't access the remote computers after installing SP2 Can't access VPN after installing XP SP2 Can't ping XP computer with SP2 Changes for XP SP2 ICF ...
http://www.chicagotech.net/xpicf.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
"claudio" <(E-Mail Removed)> wrote in message news:A902BC6D-2F04-47E3-9533-(E-Mail Removed)...
I've a 2003 server sp1 dhcp and dns server, 15 clients.
Clients ping to server but not to themeselves; server not ping with others.
The folders are shared and clients have access nromally.
What can i do?