Once upon a time, probably 4 or 5 years ago we had a computer that we joined temporarily to our network with an IP address of 10.0.1.20. That computer was a thin client that we were using for purposes of testing with a name of neo-6381bd. The computer in question has not been connected or used on our network in probably 4 to 5 years.
Now we are adding a new server to our network that we have setup with an IP of 10.0.1.20. However in this case the computers name is elastix. However when we scan our network to see what computers are available the IP address 10.0.1.20 still shows that its name is neo-6381bd. I have gone into active directory and removed neo-6381bd from the list of computer and added elastix. However this did not fix how the computer is listed. The software we set the server up to host is not working because of this name conflict.
What would I have to do to get this computer to show up in the list of computers with the correct name?