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Internet Service: Configure TCP/IP, Continued
Macintosh
Follow these steps to verify that the TCP/IP communications protocol and an
Ethernet device are installed on your Macintosh computer.
1. Click the Apple icon in the upper left corner of the Finder. Scroll down to
Control Panels, and then click TCP/IP.
2. Click Edit on the Finder (gray bar) at the top of the screen. Scroll down to the
bottom of the menu, and then click User Mode.
3. Click Advanced in the User Mode window, and then click OK.
4. Click the Up/Down selector arrows located to the right of the Connect Via
section of the TCP/IP window, and then click Using DHCP Server.
5. Click Options in the TCP/IP window, and then click Active in the TCP/IP
Options window.
Note: In some cases, the Load only when needed option will not appear. If it
appears, select the option. A check mark appears in the option.
6. Verify that the Use 802.3 option located in the upper right-hand corner of the
TCP/IP window is unchecked. If there is a check mark in the option, deselect
the option, and then click Info in the lower left-hand corner.
7. Is there a Hardware Address listed in this window?
• 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.
• If no, you must power down 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. The computer will start, and you
will hear the Apple chime; do not release these keys.
9. Continue pressing these keys for up to three chimes, then release the keys and
allow the computer to restart.
10. 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.
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