Manage Cisco DPC2320 Cable Modem

Cisco DPC2320 is a popular modem supplied by major cable Internet Service Providers. This tutorial explains how to manage this device and configure various features supported by it. It is actually a Wireless Residential Gateway which supports the features of both modem and WiFi router. So, if your Cable broadband service provider supplies DPC2320, you can share the broadband among multiple computers. The same tutorial can be used to configure and troubleshoot EPC2320 Euro DOCSIS Residential Gateway. It has one Ethernet port and WPS setup button. You can connect extra devices using the WiFi.

Manage Cisco DPC2320
  1. Log in

    By default DPC2320 log in IP address is 192.168.0.1 and there is no default password or username.


    You can setup password from the Password Settings under Basic Settings.
    password change

  2. Set time

    If the time zone selected on DOCSIS Residential Gateway is wrong, you can correct it from 'Set Time' link under Setup.


    If the time zone is configured differently, Some cable ISP may prevent you from connecting to their server. If you ever face such a situation with DOCSIS Residential Gateway, you can fix it from the 'Set Time' page.

  3. Backup

    If you ever required to reset the device, you might loose every current modifications you made. So it is recommended to take a backup of the current modem configuration. You can save current Cisco DPC2320 configuration by pressing the link 'Save Configuration to Your PC' under setup.
    • Press Download button to save current configuration

    • You can upload previous configuration from PC using the Choose File button

  4. Check Status

    Click on Status tab on the top menu to view the current status of the device.

    Name Cisco DPC2320
    Modem Serial Number 267900411
    Cable Modem MAC Address 50:39:55:65:9c:8f
    Hardware Version 1.0
    Receive Power Level -1.8 dBmV
    Transmit Power Level 54.7 dBmV
    Signal to Noise Ratio 42.0 dB
    Cable Modem Status Operational
    Vendor Cisco
    Boot Revision 2.3.1_D2R2(S)


Setup Wireless & Security

To configure wireless and security on Cisco DPC2320, follow the steps below.
  1. click on Setup

  2. Click on Wireless basic

    Here you can setup the Wireless network name (Service Set Identifier) at SSID. You can also choose the right wireless channel for your network. Changing channel may help you to avoid noises. Here I have changed the default SSIS with the name of this blog CoreNetWorkZ.com and selected the channel as Auto.
    service set

  3. click Apply button

To configure WiFi security on Cisco DPC2320 Cable Modem, follow the steps below.
  1. Click Setup on the top menu

  2. Click on Security under Wireless

  3. Here change the device name and WPA Pre-Shared Key. If you have enabled WPA Pre-Shared Key, you must disable WEP. You can choose any one of the encryption standards from WEP, WPA-PSK, WPA-PSK2 and WPA.



Forgot Cisco DPC2320 Modem Password

You don't need to worry if you forgot the password you set for Cisco EPC2320 Euro DOCSIS. Logon to Cisco DPC2320 cable broadband modem using the IP address http://10.1.191.68/. One of the advantage of using this IP address is to bypass the modem login authentication. By typing the IP address 10.1.191.68 on the address bar, you will not be prompted to enter the username or password you have created. So we can say this IP address as the backdoor address to gain control of this model of Cisco Gateway.

Prevent a Device From Joining WiFi

On Cisco DPC2320 you have the facility to block a computer or any device from connecting to the network. You can do it by using the features IP filtering and MAC filtering. IP address filtering works only with devices having a static IP. If they refresh the current IP, most probably those devices will break this filter. MAC address filtering is more efficient because MAC address is inbuilt address. However, there are so many MAC spoofing services which allow users to change the MAC address of their devices. Now let us check how to enable these two filters.
  1. IP Filtering

    Click on 'IP Address Filtering' under advanced setup to block a particular IP from joining the WiFi. You can simply add the IP you want to block and click Apply.


  2. MAC Address Filtering

    Click on 'MAC Address Filtering' under Advanced Setup.


    Here you can either white-list or blacklist MAC id.

    • Block Listed

      If you select block listed, all MAC ids listed here will be blocked from joining the network.

    • Pass Listed

      If you select Pass Listed, all MAC ids entered here are the only devices who can join the network. No devices without specifying their MAC in this filed will not join the network.

Here you can see the basic information about this device. To check the system details, you may look at the chart shown in this page. Here is the details I fetch from this page about this device.

Monitor Connected Devices

Cisco DPC2320 (EPC2320 Euro DOCSIS Residential Gateway) has a special feature which allows us to check the connected devices. Under status bar you can see the list of devices connected to the network with their MAC and IP. You can see the computers connected to this gateway and sharing your Internet under CPE Connections.


Right now two computers are connected to the network and you can see them here.

Issues With Playing Online Games

Since Cisco DPC2320 is a residential gateway, it has inbuilt firewall protection. Cisco DPC2320 may prevent the working of online applications like Online games because those applications use ports which are by default blocked by firewall. If you face troubles with playing online games through this gateway, you might need to perform port forwarding.
  1. Click on Setup tab

  2. Click on Port Forwarding under Advanced settings

  3. Enter the Port number of the application


  4. Click Apply

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