How do I change my IP address in Windows XP?

1. Click Start, then select Control Panel.
2. Click Network Connections.
3. Right-click the connection you want to change and choose Properties.  

Note: If you are changing the IP address on a physical connection, it will be called “Local Area Connection”.  If you are changing the IP address on a wireless connection, it will be called “Wireless Network Connection”.

4. In the middle of the Properties window, scroll down to "Internet Protocol (TCP/IP)" and left-click on it to select it, then click Properties.
5. Select the radio button "Use the following IP address".
6. Enter your desired IP address and click into the Subnet Mask area, which should auto-fill appropriately.
7. Click OK twice to apply the settings. 

Note: If you are changing your IP address to access a specific device, minimize the Network Connections window. Complete the steps above, but in step 5, select Obtain an IP address automatically to access the Internet again.