6 Verify that the Use 802.3 option located in the upper-right corner of the TCP/IP
window is unchecked. If there is a check mark in the option, uncheck the option,
and then click Info in the lower-left corner.
7 Is there a Hardware Address listed in this window?
ï‚¡ If yes, click OK. To close the TCP/IP Control Panel window, click File, and
then scroll down to click Close. You have completed this procedure.
ï‚¡ If no, you must power off your Macintosh.
8 With the power off, simultaneously press and hold down the Command
(Apple), Option, P, and R keys on your keyboard. Keeping those keys pressed
down, power on your Macintosh but do not release these keys until you hear the
Apple chime at least three times, then release the keys and let the computer
restart.
9 When your computer fully reboots, repeat steps 1 through 7 to verify that all
TCP/IP settings are correct. If your computer still does not have a Hardware
Address, contact your authorized Apple dealer or Apple technical support center
for further assistance.
How Do I Renew the IP Address on My PC?
If your PC cannot access the Internet after the Residential Gateway is online, it is
possible that your PC did not renew its IP address. Follow the appropriate
instructions in this section for your operating system to renew the IP address on
your PC.
Renewing the IP Address on Windows 7 Systems
1 Click the Windows Start button.
2 Type cmd in the Search box. The cmd window opens.
3 Type ipconfig /renew and press Enter to renew the IP address of the computer.
Renewing the IP Address on Windows XP Systems
1 Click Start, and then click Run. The Run window opens.
2 Type cmd in the Open field and click OK. A window with a command prompt
opens.
3 Type ipconfig /release at the C:/ prompt and press Enter. The system releases
the IP address.
4 Type ipconfig /renew at the C:/ prompt and press Enter. The system displays a
new IP address.
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