Question about RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

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I see that people are asking about driverss for the RCA dcm425 cable modem. I just bought a new computer, and I connected it to the my old dcm425 modem through a router and it works just fine. I didn't install any router, Comcast or cable modem software. Why does it work with no related software/drivers installed on lthe new computer. Thanks

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The trick about all this is that the software does not configure the computer, but the modem.
So once it has been configured through a computer then plugged to a router, any computer plugged to the said router will have access to the Internet.

The whole process of installing/configuring will happen if you replace the old modem and/or plug a new computer directly to the modem.

Posted on May 09, 2011

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Posted on Jan 02, 2017

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1 Answer

Rca dcm425 modem pc link light


I would suggest that you go through this guide, it will explain you every step which you need to make to get your modem and internet connection back on track:
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Can you connect a router to a dcm425 router


Yes. My "home" network starts with the cable-modem, with an Ethernet cable between the cable-modem and the "uplink" port on my wireless router, and up to 4 computers connected to the 'LAN' ports on the router, plus support for my wireless devices (laptop, iPhone, tablet).

Nov 10, 2013 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

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I bought this modem to replace the one I rent from Comcast, and want to connect it to my wireless router. The "Quick Guide" gives directions, but only refers to PC installation, and I have a...


first you need to make sure that the new modem is provisioned (added to your account from comcast). you can do this by connecting your router to the coax cable and plugging it in (like the old modem was) then call comcast and ask them to provision the new modem (they will want you to return the old modem a local office to avoid rental fees on it). once the modem is provisioned.
1. unplug the power to the modem and router2. connect the router and modem the way you had it with your old modem (Ethernet/cat5 connects from port on modem to interent/WAN port on router)3. pug both router and modem back in
all should work now as long as there are no funky (meaning non-default) settings on your router. so, long answer to say, "no, there should be no special settings that are different for your mac"

Oct 17, 2011 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

1 Answer

I am having trouble connecting my RCA dcm425 with a dynex 10base-t ethernet hub to two devices at once. Comcast said I should be able to connect two devices at once but I can only connect one at a time. ...


The RCA DCM425 is a cable modem. You need an Ethernet router to connect two devices to the wide area network provided by the modem. A router assigns I.P. (internet protocol) addresses. Your Dynex Ethernet hub is a switch which will enable you to share files between computers. It doesn't support directing traffic to and from the internet.

I wish that I had better news for you. You can get a router from many sources.

Cindy Wells

Feb 19, 2018 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

1 Answer

I have the rca dcm425c modem wired to my mac in my office. I want to use google logitech tv in my other room with my big screen tv. I was told all I needed to add was a router that I would hook up to my...


USB is NOT RJ45 connectors. They are very differant as in water and bar of steel.

RCA DCM425 Digital Cable Modem eBay


Read backside cable connections. "ETHERNET" connect to router "Internet" connection. Plug ALL devices into "Ethernet" dump USB cable and store away. USB may shut down Ethernet connection while connected.

May 24, 2017 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

1 Answer

Can i hook up 2 computers to the rca dcm425 without a wireless router


RCA DCM425 digital cable modems only have one Ethernet cable located in the back of the device. In order to have two computers connected at the same time you will need to have router. The router will connect to the Ethernet port on the back of the RCA modem and then you can have up to 4 computers connected directly to the router using Ethernet cables. If any of your computers are wifi compatible they will also be able to get online by using the wifi from the router.

Sep 29, 2010 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

1 Answer

Paying 50Mbps service on this modem (DCM425) but only getting a downloading speed test between 2-10 Mbps. What's wrong? Is it a modem limiting issue involved? if so, am I supposed to be entitled a faster...


Who is your provider? The DCM425 is an OLD modem, its on the older DOCSIS standard and its only rated for something like 35-40mbps, i don't remember the exact number from the specs as we haven't been dealing with them here for about 8 years now. Upgrade the modem, go with something like the Surfboard SB6183 or SB6141, this depends on who your provider is also of course. If your current modem is a rental from your provider ask them for a new one, but if you want to get rid of the monthly rental fee get a new modem yourself. But i would find out what modem models are supported by your provider.

Jan 11, 2018 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

1 Answer

I lost the disk for the RCA DCM425 digital cable modem the cable company gave me. how can i get the modem to work on my new computer?


Hello Friend,
If you didn't change anything in modem side, that means the modem is still connected to internet. in this case you can connect the modem to your computer via the Ethernet cable. with this cable you will not need to install anything on your computer, just plug the Ethernet cable to the RJ45 port and start browsing internet.
The only case when you will need the drivers is when you want to connect the modem to your PC via USB cable.
Here is a link where you can find everything about your modem: quick guide, user manual, usb drivers ...
Best Regards,

Oct 30, 2009 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

1 Answer

RCA Modem DC425 all lights on except internet light. No connection.


Contact your cable-modem Internet Service Provider.
Ask them if they support your make/model of cable-modem,
and ask them to help you trouble-shoot.

Oct 26, 2009 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

2 Answers

Trouble connecting netgear wireless router to rca modem DCM425


First try connection the Yellow ethernet cable from the rca modem to your computer's network connection. If you get a connection this way, then your modem will work with a ethernet cable. If not, then call Comcast for help. The modem ethernet out to computer port must be connected to the wan line of the router. Then you can connect an ethernet cable from your computer network connection to one of the 4 ports of the router. For wireless connections you must set up the router and wireless adaptor with the same settings to connect. Follow the routers directions.
Good Luck

Jul 10, 2009 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

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