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Table 1. LED descriptions
DescriptionIconLED
•
Solid green. Power is supplied to the cable modem.
•
Off. No power is supplied to the cable modem.
•
Solid red. The cable modem is too warm and might overheat. For
more information about this condition, see Use LEDs to Troubleshoot
on page 25.
Power
•
Solid amber. One downstream channel is locked.
•
Solid green. Two or more downstream channels are locked.
•
Blinking green. The cable modem is scanning for a downstream
channel.
•
Off. No downstream channel is locked.
Downstream
•
Solid amber. One upstream channel is locked.
•
Solid green. Two or more upstream channels are locked.
•
Blinking green. The cable modem is scanning for an upstream
channel.
•
Off. No upstream channel is locked.
Upstream
•
Solid green. The cable modem is online.
•
Blinking green. The cable modem is synchronizing with the cable
provider’s cable modem termination system (CMTS).
•
Off. The cable modem is offline.
Internet
•
Green. A powered-on device is connected to the LAN port at 1000
Mbps.
•
Amber. A powered-on device is connected to the LAN port at 10 Mbps
or 100 Mbps.
•
Off. No device is connected to the LAN port.
•
Blinking green or amber. The LAN port is processing traffic.
LAN 1, 2, 3, and 4
Rear Panel
User Manual8Hardware Setup
Nighthawk Multi-Gig Speed Cable Modem
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