Netgear WNDR4720 ユーザーズマニュアル

If the error persists, you might have a hardware problem and should contact technical support 
at 

HDD LED Is Red or Red and Green

If the HDD LED is solid green plus red, the internal hard disk drive (HDD) is 85% full. 

If the HDD LED is blinking green and red, the HDD is 95% full. 

If the HDD LED is solid red, the HDD is not formatted, the HDD connection is loose, or 

there is a failure alert.

LEDs Never Turn Off

When the router is turned on, the LEDs turn on for about 10 seconds and then turn off. If all 
the LEDs stay on, there is a fault within the router.

If all LEDs are still on 1 minute after power-up:

Cycle the power to see if the router recovers.

Press and hold the Reset button to return the router to its factory settings as explained in 

on page 135.

If the error persists, you might have a hardware problem and should contact technical support 
at 

.

Internet LED Is Off

If the Internet LED does not light, 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 connecting the router’s Internet port to a cable or DSL modem, use the cable that 
was supplied with the cable or DSL modem. This cable could be a standard 
straight-through Ethernet cable or an Ethernet crossover cable.

Wireless LED Is Off

If the Wireless LED stays off, check to see if the Wi-Fi On/Off button on the router has been 
pressed. This button turns the wireless radios in the router on and off. The Wireless LEDs are 
lit when the wireless radio is turned on.