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DLink DCM-301


Modem Information

DOCSIS 3.0 modem

8x4 channel bonding with speeds of up to 150 Mbps on a wired connection

Cox recommends a DOCSIS 3.1 modem or gateway

Highest Service Level

Preferred 150

Front View

image of front view of modem

Click to enlarge.

After the cable modem successfully registers on the network, the Power, DS, US, Online, and LAN indicators illuminate continuously to indicate that the cable modem is online and fully operational.

Back View

image of back view of modem

Click to enlarge.

The DLink DCM301 has the following ports available on the back of the modem.

  • ETHERNET - Connects to the Ethernet port on your computer.
  • RESET - Resets the cable modem.
  • RF - Connects to the cable wall outlet.
  • POWER - Connects the cable modem to the power adapter.
  • ON / OFF - Press to turn the modem off or on.

The RESET button is for maintenance purposes only.

MAC Address

image of MAC address label

Click to enlarge.

MAC addresses are written as 12 digits containing both letters and numbers (0-9, A-F). A MAC address is unique. The first six characters of the MAC address are unique to the manufacturer of the device.


image of modem lights

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

Gateway LightStatusProblem
POWERSolid GreenNone
OffNo power. Verify that the power supply and electrical outlet connections are secure. Also make sure the outlet is not connected to a switch.



Solid GreenNone
Blinking GreenModem establishing a connection from the Internet to the computer



Solid GreenNone
Blinking GreenModem trying to connect to service - looking for upstream
OffModem establishing a connection from the computer to the Internet
ONLINESolid GreenNone.
OffNo connection.
ETHERNET 1-4Solid GreenNone. A device is connected to the Ethernet port.
Blinking GreenNone. A device is connected to the Ethernet port and data is being sent to or from the modem.
OffNo connection.
WIRELESS LINKSolid GreenNone. The Wireless Access Point is operational.
Blinking GreenNone. Data is being transferred over the wireless connection.
OffThe wireless access point has been disabled by the user.
Solid GreenNone. Indicates service is enabled
Blinking GreenNone. Line 1 or Line 2 is in use.
BATTERYSolid GreenNone. The battery is charged.
Blinking GreenBattery charge is low.
OffNo battery in the unit.

Manufacturer Resources

For more detailed technical information on the DLink DCM301, use the resources below.

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