Client DNS servers resetting
We have just set up a new Windows domain. Our Domain controller, 192.168.42.36, is running Active Directory and our school's DNS server, which points to the main DNS server in our school district (192.168.1.222). Our DHCP server is a Linux box. It is sending out 192.168.42.36 as the DNS server the clients should be using. Whenever we update the ip on the clients, they take the 192.168.42.36 as the DNS server. However, after about an hour, the clients somehow set their DNS server to 192.168.37.2, which is a deprecated server running at the main office. We've looked through all our servers and have no idea where that DNS server could be coming from. Any suggestions as to where that update might originate from?