I have a windows 2003 domain with one 1 domain controller and 1 DHCP server which also runs DNS. My primary DC1, has not been getting updates from my DHCP server. I check the A records on both servers and there is no updates of the new address of any computer put on the network in the last few days. If i do a ipconfig /registerdns command I can ping the XP computer and get the correct ip address. the DHCP computer is a secoundary DNS server. I have config the DHCP to " Enable DNS dynamic updates according to the settings below" > always dynamically update DNS A & PTR record.I also see a lot of old stale records in the forward lookup. I will need to setup salvaging later. This is not a new network and I been having dns issues for some time.