Apple Mac mini (Intel-based; Mid 2007) - Manual (Page 37)

Chapter 3 Problem, Meet Solution 37
Important: Instructions that refer to modems do not apply to LAN users. LAN users
might have hubs, switches, routers, or connection pods that cable and DSL modem
users do not have. LAN users should contact their network administrator rather than
an ISP.
PPPoE Connections
If you are unable to connect to your ISP using PPPoE, make sure you have entered the
correct information in Network preferences.
To check your Network preference settings:
1 Choose Apple () > System Preferences from the menu bar.
2 Click Network.
3 Choose Network Port Configurations from the Show pop-up menu.
4 Drag Built-in Ethernet to the top of the Port Configurations list.
5 Choose Built-in Ethernet from the Show pop-up menu.
6 Click PPPoE.
7 Select “Connect using PPPoE.”
8 Check the Account Name field to be sure you have entered the correct information
from your ISP.
9 If you chose to save your password, retype it to make sure it is correct.
10 Click TCP/IP. Make sure you’ve entered the correct information from your ISP
in this pane.
11 Click Apply Now.