Apple MB991LL User Guide - Page 52

Cable, odem, DSL, odem, and LAN Internet Conne

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To use Network Diagnostics: 1 Choose Apple () > System Preferences. 2 Click Network and then click "Assist me." 3 Click Diagnostics to open Network Diagnostics. 4 Follow the onscreen instructions. If Network Diagnostics can't resolve the problem, there may be a problem with the Internet service provider (ISP) you are trying to connect to, with an external device you are using to connect to your ISP, or with the server you are trying to access. You can try the following steps. Cable Modem, DSL Modem, and LAN Internet Connections Make sure all modem cables are firmly plugged in, including the modem power cord, the cable from the modem to the computer, and the cable from the modem to the wall jack. Check the cables and power supplies to Ethernet hubs and routers. Turn the modem off and on and reset the modem hardware Turn off your DSL or cable modem for a few minutes, and then turn it back on. Some ISPs recommend that you unplug the modem's power cord. If your modem has a reset button, you can press it either before or after you turn the power off and on. 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. 52 Chapter 4 Problem, Meet Solution

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52
Chapter 4
Problem, Meet Solution
To use Network Diagnostics:
1
Choose Apple (
) > System Preferences.
2
Click Network and then click “Assist me.”
3
Click Diagnostics to open Network Diagnostics.
4
Follow the onscreen instructions.
If Network Diagnostics can’t resolve the problem, there may be a problem with the
Internet service provider (ISP) you are trying to connect to, with an external device you
are using to connect to your ISP, or with the server you are trying to access. You can try
the following steps.
Cable
M
odem, DSL
M
odem, and LAN Internet Conne
c
t
i
on
s
Make sure all modem cables are firmly plugged in, including the modem power cord,
the cable from the modem to the computer, and the cable from the modem to the
wall jack. Check the cables and power supplies to Ethernet hubs and routers.
Turn the modem off and on and reset the modem hardware
Turn off your DSL or cable modem for a few minutes, and then turn it back on. Some
ISPs recommend that you unplug the modem’s power cord. If your modem has a reset
button, you can press it either before or after you turn the power off and on.
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.