Your computer is automatically given an IP address once manufactured. Your computer’s IP can not be changed. You also have a network IP which is automatically given to your computer from your modem or router. This may be changed to a static IP if you choose (an ip address you assign rather then automatically being assigned one through your modem/router). you need to access your router or modem’s user manual to see how to set this up as every one is different depending on the brand.