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7-1
v1.0, May 2009
Chapter 7
Troubleshooting
This chapter gives information about troubleshooting your ADSL2+ Modem Wireless Router.
After each problem description, instructions are provided to help you diagnose and solve the
problem. For the common problems listed, go to the section indicated.
• Is the router on?
• Have I connected the router correctly?
Go to “Basic Functioning” on page 7-1.
• I can’t access the router’s configuration with my browser.
Go to “Troubleshooting Access to the Modem Router Main Menu” on page 7-2.
• I’ve configured the router but I can’t access the Internet.
Go to “Troubleshooting the ISP Connection” on page 7-3.
• I want to clear the configuration and start over again.
Go to “Restoring the Default Configuration and Password” on page 7-8.
Basic Functioning
After you turn on power to the router, the following sequence of events should occur:
1. When power is first applied, verify that the Power LED is on.
2. After approximately 10 seconds, verify that:
a. The Power LED is still solid green. A red light indicates the unit has failed its power-on
self-test (POST).
b. The Ethernet LAN port LEDs are lit for any local ports that are connected.
If a LAN port’s LED is lit, a link has been established to the connected device. If a LAN
port is connected to a 100 Mbps device, verify that the port’s LED is green. If the port is
10 Mbps, the LED is amber.
c. The DSL and Internet LEDs are lit.