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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

Go Fast - 100


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 - Connect 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 device's manufacturer.


image of modem lights

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

Gateway Light Status Problem
POWER Solid Green None
Off No power. Verify that the power supply and electrical outlet connections are secure. Also, make sure the outlet is not connected to a switch.



Solid Green None
Blinking Green Modem establishing a connection from the Internet to the computer



Solid Green None
Blinking Green Modem trying to connect to service - looking for upstream
Off Modem establishing a connection from the computer to the Internet
ONLINE Solid Green None.
Off No connection.
ETHERNET 1-4 Solid Green None. A device is connected to the Ethernet port.
Blinking Green None. A device is connected to the Ethernet port, and data is sent to or from the modem.
Off No connection.
WIRELESS LINK Solid Green None. The Wireless Access Point is operational.
Blinking Green None. Data is being transferred over the wireless connection.
Off The user has disabled the wireless access point.
Solid Green None. Indicates service is enabled
Blinking Green None. Line 1 or Line 2 is in use.
BATTERY Solid Green None. The battery is charged.
Blinking Green Battery charge is low.
Off No battery in the unit.

Manufacturer Resources

Use the resources below for more detailed technical information on the DLink DCM301.

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