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Netgear CMD31T

Details

     

Modem Information

DOCSIS 3.0 Cable Modem

4x4 channel bonding with speeds of up to 50 Mbps on a wired connection

Not compatible with future speed increases

DOCSIS 3.0 modems with 4x4 channel bonding have a maximum speed of 50 Mbps on the Cox network. Cox recommends a DOCSIS 3.0 16x4 or higher device for optimal Internet performance.

Highest Service Level

Essential

   

Front View

Image of front view of CMD31T modem

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

Image of back view of CMD31T modem

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

Image of CMD31T MAC address label

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.

Troubleshooting

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
Off No power. Verify power supply connections and electrical outlet.
ONLINE (Cable Link) Blinking Green Modem is online and operational.
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.

Manufacturer Resources

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

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