DPC3939

The Cisco DPC3939 router has 300mbps WiFi, 4 Gigabit ETH-ports and 0 USB-ports.

Quick links:
Default password/Login
Login instructions
User Manuals


DPC3939 router specifications (specs)

System specs
CPU: n/a
RAM: 512 MiB
Flash: 128 MiB + 32 MiB
Custom firmwares: None
Connectivity
WiFi: 300mbps (abgn)
WiFi bands: 2.4GHz & 5GHz
WiFi throughput: n/a
WAN: None
ETH: 4 x Gigabit ports
USB-ports: 0

Hard reset instructions for Cisco DPC3939

If your DPC3939 router is not working as it should, dropping connections or not being responsive, you should first do a reset of the router to see if the problems persist. Other scenarios where you might want to reset your router is if you've forgotten the password or misconfigured it and can't get access anymore.
Your can reset your Cisco DPC3939 in the following way(s):

The 30-30-30 reset

There are no specific instructions for this model yet, but you can always do the 30-30-30 reset as follows:
  1. When router is powered on, press the reset button and hold for 30 seconds. (Use a paper clip or something sharp)
  2. While holding the reset button pressed, unplug the power of the router and hold the reset button for 30 seconds
  3. While still holding the reset button down, turn on the power to the unit again and hold for another 30 seconds.

This process usually works for resetting any router to it's factory setting.

Note: It is worth reading more about how to reset routers with the 30 30 30 reset and what the risks and considerations are when resetting your router this way, instead of just rebooting it.


Default factory settings for Cisco DPC3939

If you have performed a reset of your DPC3939 device or not changed the defaults, you should be able to access it with the following settings:

Default Network name (SSID): HOME-XXXX-2.4,HOME-XXXX-5
Default Gateway IP: 10.0.0.1 Cisco login instructions
Default username: admin Cisco router default password list
Default password: password 
Default subnet mask: 255.255.255.0
Default DNS server: 10.0.0.1
Note: If you are using the default settings you should change them to increase security and prevent unathorized access to your network.

How to login to the DPC3939

To login to the DPC3939 router and change the settings, you can follow these steps:

  1. Make sure you are connected to the router's network, either by Wi-Fi or ethernet cable.
  2. Open your browser and visit http://10.0.0.1
  3. You should be prompted with a login dialogue.
  4. Enter the username: admin and the password password
    Note: If you have already changed the password use that instead.
  5. You will now be logged in. If you haven't yet changed the defaul password, we recommend that you change it first thing you do after logging in.

If these instructions don't work for your router, you can always try a factory reset to get the default, or try some other common Cisco credentials, as they can usually be shared across models/variants.


User Manuals for DPC3939

Do you still have questions concerning the router that you can't find online? You can always try the manuals where most questions should be answered from the manufacturer. Below are the device manuals available for your DPC3939.

Name Type Size Date
User Manual (click to download) pdf 218.3 kB Nov. 30, 2012
user manual (click to download) pdf 401.33 kB Oct. 25, 2012
Users Manual (click to download) pdf 1.71 MB May 15, 2013



Report error on page
(If info is incorrect)