Netgear CMD31T Nighthawk Cable Modem user manual

Contents hide

Netgear CMD31T Nighthawk Cable Modem


Modem Information DOCSIS 3.0 Cable Modem 4×4 channel bonding with speeds of up to 50 Mbps on a wired connection Cox recommends a DOCSIS 3.0 16×4 or higher modem DOCSIS 3.0 modems with 4×4 channel bonding have a maximum speed of 50 Mbps on the Cox network.	Highest Service Level Essential

DOCSIS 3.0 Cable Modem

4×4 channel bonding with speeds of up to 50 Mbps on a wired connection

Cox recommends a DOCSIS 3.0 16×4 or higher modem

Essential


Front View Click to enlarge.		After the cable modem successfully registers on the network, the Power, Upstream, Downstream, and Internet indicators illuminate continuously to indicate that the cable modem is online and fully operational.

Back View Click to enlarge.		The modem includes the following connection ports: POWER – Connects the cable modem to the power adapter REBOOT – Restores factory settings ETHERNET – Connects to the Ethernet port CABLE – Connects to coaxial cable with broadband

MAC Address Click to enlarge.		The information below is usually found on a sticker located on the bottom of the modem. The S/N is the serial number of the Netgear CM600 modem. The CM MAC is the MAC address of the Netgear CM600 modem.

The modem lights indicate the current status of your modem. To troubleshoot connection problems, use the table below.

Modem Light	Status	Problem
POWER	Solid Green	Operational
POWER	Off	No power. Verify power supply connections and electrical outlet.
ONLINE (Cable Link)	Blinking Green	Modem is online and operational.
ONLINE (Cable Link)	Off	Cable modem offline. Verify all cable connections and try resetting the modem.
US (Upstream)	1/2 solid amber	Upstream channel 1 in use.
	1/2 solid green	Upstream channel 1 and 2 in use.
	3/4 solid amber	Upstream channel 1, 2, and 3 in use.
	3/4 solid green	Upstream channel 1, 2, 3, and 4 in use.
	Off	No Upstream channel in use.
DS (Downstream)	1/2 solid amber	Upstream channel 1 in use.
	1/2 solid green	Upstream channel 1 and 2 in use.
	3/4 solid amber	Upstream channel 1, 2, and 3 in use.
	3/4 solid green	Upstream channel 1, 2, 3, and 4 in use.
	Off	No upstream channel in use.
ETHERNET	Solid Green	A device is connected and detected on the 1-Gbps Ethernet Port.
	Blinking Green	Data traffic on the 1 Gbps Ethernet port.
	Off	No devices detected on the Ethernet port. Verify all cable connections and try resetting the modem.

For more detailed technical information on the Netgear CMD31T, use the resources below from Cisco.