3
LED Description
Power •  Solid green. Power is supplied to the modem router.
•  O. No power is supplied to the modem router.
•  Solid red. Thermal cuto mode. Power o 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.
•  O. 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.
•  O. 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 trac meter limit. (For information about the 
trac meter, see the modem router’s user manual.)
•  O. The modem router is oine.
2.4 GHz WiFi •  Solid green. The 2.4 GHz radio is on.
•  O. The 2.4 GHz radio is o. 
5 GHz WiFi •  Solid green. The 5 GHz radio is on.
•  O. The 5 GHz radio is o. 
Ethernet •  Solid green. A device is connected to an Ethernet port 
and powered on. Ethernet port LEDs for each port are 
located on the rear panel.
•  O. No device is connected to an Ethernet port.