IP conflict with other computers on the network

How do I change the IP address on a computer in a network. The computer can not connect to the internet because of the conflict. I am using a links wireless router on the road runner internet server.

Try the following for IP conflicts:

1. For networks where IP addresses are fixed (statically assigned), ensure each local host is configured with a unique IP address.

2. If your computer has a dynamically assigned address, releasing and renewing its IP address can workaround IP address conflicts.

FOR NUMBER 2

1. Click the Start menu button on the Windows taskbar.
   
2. Click Run... on this menu.
   
3. If the computer is holding a current IP address, type 'cmd' (without the
   quotes) in the text box that appears. A command prompt window appears
   on the screen.
   
4. Type 'ipconfig' (without the quotes) to view the status of the computer's IP address(es).
   
5. If the computer is holding a current IP address, type 'ipconfig /release' to let go of the address.
   
6. Type 'ipconfig /renew' to obtain a new IP address (whether or not the computer is holding a current address).