This is not Mac related... Here is the situation We are organizing our static ip address list. For open spots, we are moving people with higher addresses up into the new addresses to fill in gaps. Did a physical check of all addresses being used. Ping open addresses, nothing comes back. Go to change a computers address to that open spot, and it says it is already in use. Question--- Is there a way to boot that ip address out, since it is not being used, and give the address to the computer we want to use it?