How to release/renew your IP address (Windows NT/2000/XP)
- Go to Start and click Run. The Run window will be displayed.
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Type command and click OK. The C:\WINDOWS\System32\command.com window will be displayed.

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At the U:\> prompt, type ipconfig and press [Enter].

- At the U:\> prompt, type ipconfig /release and press [Enter]. Wait for the operation to complete.
- At the U:\> prompt, type ipconfig /renew and press [Enter]. Wait for the operation to complete.
- At the U:\> prompt, type Exit and press [Enter] to close the window.