For the past two years the DHCP on windows 2000 was configured to give IPs from 10.0.0.1 to 10.0.0.254, i was trying to change this and to add at least 10.0.1.x class. But unfortunatly after doing this, all these clients with these new IPs after 5/10 min gets disconected, ping time out, both XP and Apple clients acts the same.
In the begging i beleived it was because of some networking issue, i have replaced all 4 switches with new ones from HP. The situation is the same.
I have tried to configure a new DHCP server on Windows 2003 R2 machine but no change: the clients with 10.0.0.x can work properly without any interuptions, and the clients who receive the 10.0.1.x IP after 5/10 min gets disconected from alll the servers in the network. If i'm trying to ping from any other machine i get ping time out