we have multiple locations and several dns and dhcp servers setup through out\nour domain. dhcp and dns are set up correctly and we do get clients to\nupdate. What we are finding is the client will get a lease and you check dns\nand it does not match what was given by dhcp. we have also been having issues\nwith clients getting addresses that are already being used and IP phones\ngetting addresses already being used which bring the phone down. It seems\nthat dhcp is not updating the DNS servers correctly or in a timely fashion.