[Trick] Dead Cable Modem epc3925 – Upc cable tv customer temporary solution

IMPORTANT UPDATE! Please read on:

In order to make your digital tv receiver acts as a bridge, you have to trigger the connection from the receiver some way, otherwise you will not be able to get served by DHCP. I figured out that it is sufficient using some interactive service like the SEARCH (Zoek) function on the menu page.

Enjoy Ducth neighboors! and read the rest of the article 🙂


UPC Mediabox HD
How to use the upc mediabox HD as Modem-Bridge

I’m writing this post using the very workaround that I’m going to describe here.

Symptoms: My Internet connection dropped last night around 2-4 a.m. and i can say this because before and after this time i was using my mac.

My setup is made by :

  • Cisco EPC3925 Cable Modem (Used as bridge)
  • Linksys E2000 with DD-Wrt used as router  and access point directly connected to the EPC3925 in DHCP (It will assume the public IP Address)
  • Wireless clients (Macbook pro, Macbook 13, iphone, Samsung Tab, ipad1, Raspberry-pi, stupid windows lab rat machine :p
  • Wired clients like NAS, barebone Web/db Server, Arduino udp/bluetooth Weather Station and so.

Now: all I did was taking a closer look to the Upc Mediabox HD , in other words the digital cable tv receiver / decoder. Then i noticed an Ethernet port, so i attached my macbook to this very port with a normal ethernet cable (utp4-cat5), as shown in the following image.

UPC Mediabox HD Rear Panel
UPC Mediabox HD Rear Panel – Read this article to know how to use the Ethernet port on the rear panel of your upc mediabox HD as router bridge.

Setup my mac in DHCP, and voilà it had a public IP address and it can actually browse the internet.

screen_dhcp_upc_mediabox_hdhow to get your Public IP address from the upc mediabox HD rear panel ethernet port

This means that the mutimedia tv box is acting as a modem/bridge. At this point it is sufficient to share this connection from the macbook ethernet port to the wireless client and all my devices are back online in minutes.

Unfortunately if you lost your connection for my same reason (dead modem/router), it is very unlikely that you will find this post with your pc, but i’m certain that you,  smart ,crazy people, will be online with your cell phone and will search for this solution. If it is so: You owe me a comment!! 🙂

P.S. Please take into account that the device you are going to connect to the ethernet port of the mediabox hd will have a public ip address, so be careful. As soon as i will use a router / access point i will write about it.

P.P.S. Since the mediabox has a totally different class ip address, i think it can be kept up beside the router, having 2 ip addresses in place of just one. As soon as my rooter decide to work again, i will post another article about this topic.


Incoming search terms:

  • upc mediabox hd (20)
  • tooa9a (1)
  • usels2 (1)
  • weather15n (1)
(Visited 3,446 times, 1 visits today)

Author: Giuseppe Urso

Giuseppe lives in Haarlem now with his shiny dog, Filippa In 1982 received his first home computer, a Commodore 64, followed by Datasette and a 1541 Floppy Disk Drive. In 1999 he installed his first Linux distro (LRH6). In 2006 he switched to Debian as favourite OS. Giuseppe Urso actively sustains the Free Software Fundation and his founder Richard Mattew Stallman, he speaks to people trying to convince them to join the fight now, and about how important is to use Free Software only. He has a job as Infra Specialist at Hippo Enterprise Java Cms an Open Source Enterprise class Content Management System, one of the coolest company ever, in Amsterdam. He's always ready to install Debian on other people computers for free.

8 thoughts on “[Trick] Dead Cable Modem epc3925 – Upc cable tv customer temporary solution”

  1. Hi Giuseppe, I am experiencing a lot of trouble with UPC internet lately (modem doesn’t come online and 4 service people was not enough to solve the problem. My Mediabox works fine though.) I tried you solution and was able to get a DHCP-address (in the 169.x.x.x range). However, my computer can’t establish an internet connection, just a connection to the mediabox. Any idea?

  2. I had to remove the splitter to get a strong enough signal. Without the splitter at least the mediabox comes online, the cable modem doesn’t. Everything was perfect until UPC performed ‘network maintenance’ some time ago. They are really a bunch of amateurs.

    1. Mmm sounds something nasty has been mate to your cable.
      Another clue i had was that the far socket unexpectedly worked better than the splitter itself.
      Anyway the splitter should literally divide the signal, are you sure you weren’t using it in the wrong “way”? did you try the other way around?

  3. The service technician told me to remove the splitter and gave an extra cable to connect the modem directly to the wall socket. One week later a network technician had a close look at all the cabling inside and outside and ordered a third party contractor to renew all the joints. Ever since my internet connection is dead. Making new joints did not solve the problem. The third party contractor suggested the signal might be too weak but I’m not going to invest money in an antenna booster without knowing that it will solve the problem. I’ve put my hopes on another internet provider… Thank you very much for your answers!

Leave a Reply

Your email address will not be published. Required fields are marked *


This site uses Akismet to reduce spam. Learn how your comment data is processed.