If you are connected via broadband, your provider would need to change the address. If you are connecting via modem, your IP address changes each time you sign on. So you can disconnect and reconnect and this will change it automatically.
No, the Hardware address in your network card will with high probability never change, unless you manually change this yourself.. A IP address change will not affect your mac address, but if you...
Start->Control Panel->Network Connections, right click on the connection which you want to change ip address for. Properties->Internet Protocol TCP/IP->Properties->General. In general...
If you have a dhcp server, you simply request a new ip address by going to the command prompt and entering "ipconfig release" and then "ipconfig renew". If you get you IP by a ISP, you'll need ask...
If the IP address is the one that is issued by the provider, then if you change it you cannot access internet. Only computers that have automatic IP address assigning option can change the...