Netgear AC1900 Nighthawk™ 业主指南

You can use the LEDs to verify status and connections. The following table lists and 
describes each LED and button on the front panel of the modem router.

Power 

Green. Power is supplied to the modem router.

Off. No power is supplied to the modem router.

Solid red. Thermal cutoff mode. Power off the unit, let it cool, and move it away from 
heat sources (such as a TV, DVD player, or speakers) and keep it vertical in open air.

Downstream 

Solid amber. One downstream channel is locked.

Solid green. Two or more downstream channels are locked.

Blinking green. The modem router is scanning for a downstream channel.

Off. No downstream channel is locked. 

Upstream 

Solid amber. One upstream channel is locked.

Solid green. Two or more upstream channels are locked.

Blinking green. The modem router is scanning for an upstream channel.

Off. No upstream channel is locked.

Internet 

Solid green. The modem router is online.

Blinking green. The modem router is synchronizing with the cable provider’s cable 
modem termination system (CMTS).

Slow blinking amber and green. The modem router reached the traffic meter limit. 
(For information about the traffic meter, see 

83.)

Off. The modem router is offline.

2.4 GHz radio 

Green. The 2.4 GHz radio is on.

Off. The 2.4 GHz radio is off.

5 GHz radio 

Green. The 5 GHz radio is on.

Off. The 5 GHz radio is off.

Ethernet 

Green. A device is connected to an Ethernet port and powered on. Each Ethernet port 
has LEDs on the rear panel.

Off. No device is connected to an Ethernet port.

WiFi On/Off but-
ton with LED 

Pressing this button for two seconds turns the WiFi radios in the modem router on and off. If 
this LED is lit, the WiFi radios are on. If this LED is off, the WiFi radios are turned off and 
you cannot use WiFi to connect to the modem router.

WPS button with 
LED 

This button lets you use WPS to join the WiFi network without typing the WiFi password. 
The WPS LED blinks during this process and then lights solid.