I have a Windows 2008 R2 server that I want to manually create an A record in DNS for. I also do not want it to try to register its own name. So, as I would have done in Server 2003, I disabled its ability to register a name in the TCP/IPv4 properties of the NIC. Then, I went to my DNS and created a record. All seems right with the world. However, after a few hours, the manually created A record disappears. I have the same problem with a Server 2012 machine. This method has worked perfectly for me in the past with older OSs like 2003 and 2000. Has Microsoft disabled the ability to do this?