Netgear D6400 – AC1600 WiFi VDSL/ADSL Modem Router—802.11ac Dual Band Gigabit Manuel D’Utilisation

Make sure that Java, JavaScript, or ActiveX is enabled in your browser. If you are using 
Internet Explorer, click the Refresh button to be sure that the Java applet is loaded.

Try quitting the browser and launching it again.

Make sure that you are using the correct login information. The user name is admin, and 
the default password is password. Make sure that Caps Lock is off when you enter this 
information.

If you are attempting to set up your modem router behind an existing router in your 
network, set up the modem router as a WiFi access point (see 

If your modem router cannot access the Internet, check the DSL connection, then the WAN 
TCP/IP connection. 

If your modem router is unable to access the Internet, first determine whether the DSL link 
with the service provider is working. The DSL LED indicates the state of this connection.

If the DSL link LED lights green 

, the ADSL connection is good. You can be confident that 

the service provider connected your line correctly and that your wiring is correct.

If the DSL LED is blinking green 

, your modem router is attempting to make a DSL (ADSL 

or VDSL) connection with the service provider. If the modem router establishes a DSL 
connection, the DSL LED turns solid green. This connection process generally lasts several 
minutes.

If the DSL LED does not turn solid green, disconnect all telephones on the line. If this solves 
the problem, reconnect the telephones one at a time, being sure to use a microfilter on each 
telephone. If the microfilters are connected correctly, you can connect all your telephones.

If disconnecting telephones does not result in a green DSL LED, a problem with your wiring 
might exist. If the telephone company tested the ADSL or VDSL signal at your network 
interface device (NID), then wiring in your house might be of poor quality.

If the DSL LED is off 

, the Internet LED is off 

, or both are off, disconnect all 

telephones on the line. If this solves the problem, reconnect the telephones one at a time, 
being sure to use a microfilter on each telephone. If the microfilters are connected correctly, 
you can connect all your telephones.