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The Internet should add convenience, not headaches. From step-by-step instructions to helpful tips, we'll help you install your equipment, troubleshoot problems, and get the most out of your online experience – minus the migraine.

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Cisco DPQ3212 eMTA Modem

Last Updated: Fri, 01 Nov 2013 > Related Articles

49 rated this

Summary

View troubleshooting and setup tips for the DPQ3212 modem.

Solution


Installation

If you need help setting up your cable modem, refer to the following articles.

 


The Cisco DPQ3212 is a DOCSIS 3.0 cable modem that enables wired telephone and Internet services from Cox. It connects to the coax cable from the wall and delivers digital telephone and Internet access through the connection ports on its back panel. The modem:

  • Can be activated for up to two phone lines, a high-speed Internet device (such as a PC or router), and a secondary Internet device via a 12 Mbps USB port.
  • Requires subscription to Cox Digital Telephone and / or Cox High Speed Internet service.

Front View
 


After the modem is successfully connected to the network, the POWER, DS, US, and ONLINE indicators illuminate continuously to indicate that the modem is online and fully operational. For more details, refer to the Modem Lights section.

Back View
 


The modem includes the following connection ports: 

  • POWER - Connects the cable modem to the power adapter.
  • ETHERNET - Connects to the Ethernet port on your computer.
  • USB - Connects to the USB port on your computer.
  • TELEPHONE 1 and 2 - Connects to the telephone (or fax).
  • RESET - Used by Cox maintenance to reset the modem - may delete all previous settings.
  • CABLE - Connects to the cable wall outlet.

Modem Lights
 


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

Modem LightStatusProblemSolution
PowerSolid GreenNoneN/A
OffNo powerVerify power supply connections and electrical outlet, also make sure the outlet is not connected to a switch.

DS 

(Downstream)

Solid GreenNoneN/A
Blinking GreenModem is establishing a connection from the Internet to the computer.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.

US

(Upstream)

Solid GreenNoneN/A
Blinking GreenModem is trying to connect to service. Looking for upstream.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work,  contact Customer Support.
OffModem is establishing a connection from the computer to the Internet.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
ONLINESolid GreenNone.N/A
OffNo connection.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
LINKSolid GreenNone. A single device is connected to either the Ethernet or USB port and no data is being sent to or from the modem.N/A
Blinking GreenNone. A single device is connected to either the Ethernet or USB port and data is being transferred between the PC and the cable modem.N/A
OffNo devices connected.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
TEL 1  
TEL 2
Solid GreenNone. Indicates service is enabled.NA
Blinking GreenNone. Indicates Line 1 or Line 2 is in use.NA
BATTERYSolid GreenNone. Indicates battery is charged.NA
 Blinking GreenIndicates battery charge is low.Make sure the power cord is connected to the unit and an active power source. If the battery is over seven (7) years old, contact Customer Support.
 OffIndicates there is no battery in the unit.Contact Customer Support.

MAC Address Label
 


The S/N is the serial number of the DPQ3212 modem.

The CM MAC is the MAC address of the DPQ3212 modem.

Manufacturer Resource

Cisco DPQ3212 eMTA Modem User Guide (PDF)

 


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