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

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Make sure that the power adapter is securely connected to your router and securely connected to a working
power outlet.
Make sure 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 
Power LED Stays Amber
When the router is turned on, the Power LED turns amber for up to 2 minutes 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 three minutes after you turn on power to the router, do the following:
Cycle the power to see if the router recovers.
Press and hold the Reset button to return the router to its factory settings. For more information, see 
If the error persists, a hardware problem might be the cause. Contact technical support at 
LEDs Never Turn Off
When the router is turned on, the LEDs light for about 10 seconds and then turn off. If all the LEDs stay on, this
indicates a fault within the router.
If all LEDs are still lit one minute after power-up, do the following:
Cycle the power to see if the router recovers.
Press and hold the Reset button to return the router to its factory settings. For more information, see 
If the error persists, a hardware problem might be the cause. Contact technical support at 
Internet or Ethernet Port LEDs Are Off
If either the Ethernet port LEDs or the Internet LED does not light when the Ethernet connection is
made, check the following:
Make sure that the Ethernet cable connections are secure at the router and at the modem or computer.
Make sure that power is turned on to the connected modem or computer.
Be sure that you are using the correct cable.
When you connect the router’s Internet port to a modem, use the cable that was supplied with the modem. This
cable can be a standard straight-through Ethernet cable or an Ethernet crossover cable.
Troubleshooting
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Nighthawk AC1900 Smart WiFi Router Model R6900