Computer HELP !

[BA.]

Sounds to me like you still have the old machines Mac address in your router or cable modem. (what ever you are using)

There is a unique Mac address for every device on the network. It's a "layer 2" address for the network card that is then associated with whatever IP address you assign. (or DHCP assigns). Mac addresses work a bit differently than IP addresses.

Anyhoo, have you reset the rest of your networking gear yet? that's the easiest way to clear mac addresses other than trying to work through a device console and finding the command. (in this case)



You could also assign a different IP address and not re-use the same IP as the old machine. That just leaves the problem to possibly crop up another day though.