AC1900, N900, and N450 WiFi Cable Data Gateways
Table 1. Front panel LEDs and button of the AC1900 (continued)
LED
Icon
Power
Downstream
Upstream
Online
2.4 GHz WiFi
5 GHz WiFi
LAN
Description
•
Solid green. The gateway is receiving power.
•
Blinking green. The gateway is powering on.
•
Solid red. The gateway is performing a self-test or the thermal cutoff circuit was
triggered.
Note:
Off. The gateway is not receiving power.If the Power LED lights red or blinks
red at any other time than while booting, see
page 155.
•
Solid blue. More than one downstream channel is locked.
•
Solid green. One downstream channel is locked (channel bonding does not
occur).
•
Blinking green. The cable data gateway is scanning for a downstream
channel.
•
Off. No downstream channel is locked.
•
Solid blue. More than one upstream channel is locked.
•
Solid green. One upstream channel is locked (channel bonding does not
occur).
•
Blinking green. The cable data gateway is scanning for an upstream channel.
•
Off. No upstream channel is locked.
•
Solid green. The cable data gateway is connected to the Internet.
•
Slow blinking green. The cable data gateway is receiving DHCP information
from the cable provider's cable modem termination system (CMTS).
•
Fast blinking green. The cable data gateway is downloading a configuration
file from the cable provider's CMTS.
•
Off. The cable data gateway is not connected to the Internet.
Note:
The Online LED is also referred to as the Internet LED.
•
Solid green. The 2.4 GHz WiFi radio is functioning and available for use.
•
Blinking green. The 2.4 GHz WiFi radio is processing traffic.
•
Off. The 2.4 GHz WiFi radio is disabled. (If the radio is disabled, see
the WiFi Radios
on page 109.)
•
Solid green. The 5 GHz WiFi radio is functioning and available for use.
•
Blinking green. The 5 GHz WiFi radio is processing traffic.
•
Off. The 5 GHz WiFi radio is disabled. (If the radio is disabled, see
WiFi Radios
on page 109.)
The type of Ethernet connection determines the LED color:
•
A green LED indicates a 1,000 Mbps connection.
•
An amber LED indicates a 100/10 Mbps connection.
The LED functions are as follows:
•
Solid green or amber. The Ethernet port is connected to a powered-on device.
•
Blinking green or amber. Data is being transmitted or received on the Ethernet
port.
•
Off. The Ethernet port does not detect a powered-on device.
Hardware Overview
10
Troubleshoot with the LEDs
Control the
on
Control