How do I configure Internet Windows connection settings?

Configure Computer Settings with DHCP for Windows XP
Before you begin configuring your computer for DHCP, please unplug your cable modem power cord and disconnect the cable that goes from your modem to your computer. To configure your computer settings with DHCP for Windows XP operating systems:
Close all applications
Click Start and select Control Panel
Click Network and Internet Connections
Click Network Connections
Double-click the Local Area Connection Icon
The Local Area Connection Status window will appear
Click on Properties
On the General Tab, double-click Internet Protocol (TCP/IP) or highlight it and select Properties Select the General Tab of the Internet Protocol (TCP/IP) Properties window
Make sure the radio buttons for Obtain an IP Address Automatically and Obtain DNS Server Address Automatically are both selected and click OK On the Local Area Connection Properties window select the Advanced tab
Make sure that in the Internet Connection Firewall section, Protect My Computer and Network by Limiting or Preventing Access to this Computer from the Internet is not checked. This disables the Windows XP built in firewall which may hinder the connection. You may re-enable it after troubleshooting or initial setup.
Click OK