4012160 Rev B 35
How Do I Troubleshoot My Internet Service Installation?
Renewing the IP Address on Macintosh Systems
1 Close all open programs.
2 Open your Preferences folder.
3 Drag the tcp/ip preferences file to the Trash.
4 Close all open windows and empty the Trash.
5 Restart your computer.
6 As your computer starts, 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.
7 When your computer fully reboots, click the Apple icon in the upper-left corner
of the Finder. Scroll down to Control Panels, and then click TCP/IP.
8 Click Edit on the Finder at the top of the screen. Scroll down to the bottom of the
menu, and then click User Mode.
9 Click Advanced in the User Mode window, and then click OK.
10 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.
11 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 does not appear. If it
appears, select the option. A check mark appears in the option.
12 Verify that the Use 802.3 option located in the upper-right corner of the TCP/IP
window is not selected. If there is a check mark in the option, select the option to
clear the check mark, and then click Info in the lower-left corner.
13 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.
If no, repeat these instructions from step 6.
14 Reboot your computer.
