Netgear R6900 - Nighthawk AC1900 Smart WiFi Router User Manual (en)

and router are turned on. If one or more powered-on computers are connected to the router by an Ethernet cable,
the corresponding numbered router LAN port LEDs light.
WiFi Settings
Make sure that the WiFi settings in the computer and router match exactly. The WiFi network name (SSID) and WiFi
security settings of the router and WiFi computer must match exactly.
If you set up an access list on the Advanced Wireless Settings page, you must add each WiFi computer’s MAC
address to the router’s access list.
Network Settings
Make sure that the network settings of the computer are correct. Wired computers and computers that are connected
over WiFi must use network IP addresses on the same network as the router. The simplest way to do this is to
configure each computer to obtain an IP address automatically using DHCP.
Some service providers require you to use the MAC address of the computer initially registered on the account. You
can view the MAC address on the Attached Devices page.
Troubleshoot With the LEDs
By default, the router is set with standard LED settings. If you turned off the LEDs except the Power LED, you must
return the LEDs to their standard settings for troubleshooting. For information about controlling the LED settings,
 on page 191.
Standard LED Behavior When the Router Is Powered On
After you turn on power to the router, verify that the following sequence of events occurs:
When power is first applied, verify that the Power LED 
 is lit.
After about two minutes, verify the following:
The Power LED is solid white.
The Internet LED is lit.
The WiFi LED is lit unless you turned off the WiFi radio.
You can use the LEDs on the front panel of the router for troubleshooting.
Power LED Is Off or Blinking
This could occur for a number of reasons. Check the following:
Nighthawk AC1900 Smart WiFi Router Model R6900