How to Get a New IP Address
Your IP address (which stands for internet protocol) is the number that represents your unique network and computer. Each and every computer in the world has its own ip address that can be used to identify it on the internet. When you surf the internet, send email, view pictures a friend sent you, or even just connect to the internet, you are using an ip address. IP addresses are helpful when a website needs to identify your computer, when you need to connect to a remote computer, or when someone needs to trace who has been visiting their site. Every so often, a user may want to change their IP address to a new number. There are many reasons for this: you may be trying to access a website that has blocked your IP address, you may need to reset your router, etc.
Before You Begin
Surprisingly, reseting an IP address is not always simple. For some people it takes 30 seconds. For others with different network setups, it could be extremely difficult. That being said, try all of the options I list here before giving up. Sometimes, ISPs will simply assign you the same IP address over and over. If that is the case, changing it may prove almost impossible.
Checking Your IP Address
In order to know if your efforts were successful, you will need to know your IP address before and after your attempts. To check it at any time, simply visit: http://www.whatismyip.com/ and note the number at the top.
Reset Your Router
If you connect to the internet through a router or cable modem, resetting it can often cause you to be issued a new IP address. Simply turn if off for about ten minutes, and then reset it. This works 90% of the time.
Change Your Router's Settings
If unplugging your router doesn't work, sometimes you'll need to venture into the settings page and reset the IP address manually. To do this, enter the address of your router into your URL bar. Typically, this is 192.168.1.1, but it may differ depending on your network. From there, you will need to log in to the router using the user name and password you set up.
From here, every router is different. On the most common Linksys routers, the option to reset your IP address is found under the "Status" tab. Then, there is a button that says "DHCP Release" and "DHCP Renew." These buttons will give your router a new IP address.
If you don't have a router, then it is possible to reset your IP address through Windows. Simply click the Start Menu, type "CMD" without the quotes, and then wait for the command box (black box) to appear. In there, you can type the following:
Windows should then issue you a new IP address. If all of these options don't work, then your ISP may have issued you something known as a static IP address. This means that even when your computer reconnects to the network (internet), its IP address remains the same. If that is the case, you can temporarily change your IP address by using a proxy. I wrote an article about bypassing web filters here that explains several proxy methods.
Resetting your IP address can be difficult or easy. It really depends on your network setup. Good luck, and if you have any questions, post them in the comments!