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

If the error persists, a hardware problem might exist. For recovery instructions or help with a 
hardware problem, contact technical support at 

.

If the Power LED 

 and other LEDs remain off when you turn on the modem router, do the 

following:

Check that the Power On/Off button on the back is in the on position, that is, it is pushed 
in.

Check that the power cord is correctly connected to your modem router and that the 
power supply adapter is correctly connected to a functioning power outlet. 

Check that you are using the 12 VDC 2.5A power adapter that NETGEAR supplied for 
this product.

If the error persists, a hardware problem might exist. For recovery instructions or help with a 
hardware problem, contact technical support at 

.

If the WiFi LED stays off 

, check to see if both radios on the modem router are disabled 

LED lights solid blue.

If you are unable to log in to the modem router from a computer on your local network and 
use the modem router’s web pages, check the following:

If you are using an Ethernet-connected computer, check the Ethernet connection 
between the computer and the modem router.

If the computer is set to a static or fixed IP address (this setting is uncommon), either 
change the computer to obtain an IP address automatically from the modem router 
through DHCP, or change the IP address of the computer to a static or fixed IP address in 
the 192.168.0.2–192.168.0.254 range.

Make sure that your computer can reach the modem router’s DHCP server. Recent 
versions of Windows and Mac OS generate and assign an IP address if the computer 
cannot reach a DHCP server. These autogenerated addresses are in the range of 
169.254.x.x. If your IP address is in this range, check the connection from the computer 
to the modem router and reboot your computer.

If your modem router’s IP address was changed and you do not know the current IP 
address, use an IP scanner application to detect the IP address. If you still cannot find the 
IP address, clear the modem router’s configuration to factory defaults. This sets the 
modem router’s IP address to 192.168.0.1. For more information, see