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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Troubleshoot the Internet Connection
If your modem router is unable to access the Internet, check the ADSL connection, then the
WAN TCP/IP connection.
ADSL Link
First determine whether you have an ADSL link with the service provider. The state of this
connection is indicated by the DSL LED.
DSL LED Is Green or Blinking Green
You have a good ADSL connection. The service provider has connected your line correctly,
and your wiring is correct.
DSL LED Is Blinking Amber
Your modem router is attempting to make an ADSL connection with the service provider. The
LED should turn green within several minutes.
If the DSL LED does not turn green, disconnect all telephones on the line. If this solves the
problem, reconnect the telephones one at a time and use a microfilter on each telephone. For
more information, see
you should be able to connect all your telephones.
If disconnecting telephones does not result in a green DSL LED, there might be a problem
with your wiring. If the telephone company has tested the ADSL signal at your network
interface device (NID) and the signal is okay, you might have poor-quality wiring in your
house.
DSL LED Is Off
First disconnect all telephones on the line. If this solves the problem, reconnect the
telephones one at a time and use a microfilter on each telephone. If the microfilters are
connected correctly, you should be able to connect all your telephones.
If disconnecting telephones does not result in a green DSL LED, check for the following:
•
Check that the telephone company has made the connection to your line and tested it.
•
Verify that you are connected to the correct telephone line. If you have more than one
phone line, be sure that you are connected to the line with the ADSL service. It could be
necessary to use a swapper if your ADSL signal is on pins 1 and 4 or the RJ-11 jack. The
modem router uses pins 2 and 3.
ADSL Microfilters
on page 13. If you connect the microfilters correctly,
Troubleshooting
142
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