Netgear R7900 - Nighthawk X6—AC3000 Tri-Band WiFi Gigabit Router 사용자 설명서

By default, the router is set with standard LED settings. If you disabled blinking for the LEDs 
or turned off all LEDs except the Power LED, you must return the LEDs to their standard 
settings for troubleshooting. For information about controlling the LED settings, see 

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 approximately 30 seconds, verify the following:

The Power LED is solid white.

The Internet LED is lit.

The WiFi LED is lit unless you turned off the wireless radio.

You can use the LEDs on the front panel of the router for troubleshooting.

Do the following:

Make sure that the power adapter is securely connected to your router and securely 
connected to a working power outlet. 

Check that you are using the power adapter that NETGEAR supplied for this product.

If the Power LED blinks slowly and continuously, the router firmware is corrupted. This 
can happen if a firmware upgrade is interrupted, or if the router detects a problem with the 
firmware. If the error persists, it is likely that a hardware problem exists. For recovery 
instructions, or help with a hardware problem, contact technical support at 

When the router is turned on, the Power LED turns amber for about 20 seconds and then 
turns white. If the LED does not turn white, this indicates a problem with the router.

If the Power LED is still amber one minute after you turn on power to the router, do the 
following:

Turn off the power and then turn it back on to see if the router recovers.

Press and hold the Reset button to return the router to its factory settings. 

See 

182.