20 Most Recent RCA DCM425 DIGITAL CABLE MODEM (RCADCM425) - Page 6 Questions & Answers

Connect your router to computer with ethernet cable then you can access it with following default link. or or or If you are not able to access it with above ip then check your computers ip address gateway ip is your router ip try with it. Then it ask for user name and password. Type user as "admin" and password as "admin" or "password" or blank. Then you can see configuration page of router. If you are still not able to access router with above ip then you need to RESET it for that press RESET button for 10 seconds it is in back side of router then all settings defaults..Then you can access it with above method. . Then click on wireless->wireless security->WEP security there is code password note down it or enter new password then save setting s and restart router. then you can connect wireless with new password. Let me know if you need further assistance. Thanks for using FixYa.

RCA DCM425... | Answered on Jan 25, 2011

This issue can be resolved by reseting the router.You might see a reset password option on the back side of the router.
Please reset the router by placing a pin in reset hole and push the pin slightly, (remember you need to do this when the router is in ON state)
Then connect your router to your computer using Ethernet port (this is for configuration) and also connect the ADSL cable.

now open internet explorer and type in //
Then it will prompt you for user name and password
Username: admin
Passsword: password
this username and password is by default.

RCA DCM425... | Answered on Jan 21, 2011

Good question. But it will not really affect how the modem works if you will use a dedicated power strip.
It could be the connection outside or the hardware itself that you are having issues with, power outages may damage the power supply of the modem itself.
Have it replaced with a different model from your Internet Service Provider.
Hope this helps.Cheers!

RCA DCM425... | Answered on Jan 12, 2011

From the back of your modem, follow the ethernet cable to your PC (in). Mark or remember this location. Remove this cable from the PC and insert it into the INTERNET port on your router. Then take another ethernet cable (usually supplied) and insert one end into the ETHERNET port of the router, and the other end into your PC (where you originally removed it. Remember to check all connections and plug in the modem. You should now be good to go! If your PC has an installation Wizard, you can browse thru it as well.

RCA DCM425... | Answered on Jan 08, 2011

You can download drivers for the Thompson RCA DCM425 here

RCA DCM425... | Answered on Jan 07, 2011

There is nothing wrong with your modem. Comcast charges extra for a second line. Depending on your model of fax machine, there should be both an input ond an output on the back of the fax machine. Plug the fax machine into line 1 on the modem. Then, plug your phone into the input on the back of the fax machine. If you fax does not have both in and out, then you can purchase a "Y" phone line adapter from your local electronics store.

ps. VoIP is a digital line... Facsimiles are analog signals... Sending analog signals over digital lines is not recomended. If you are wondering "why?" (and understand tech jargon) VoIP is sent via UDP, which is a connectionless protocol (does not retransmit dropped packets) Fax machines use TCP, which does resend dropped packets. This variance in Qualiy of Service sometimes cases strange activity such as both lines (sending and receiving) dropping connections, faxes taking a long time to transmit (due to constant resending loops), etc. It does work... kind of. I would just not assume that faxes made it to their destination until it gets confirmed.

RCA DCM425... | Answered on Dec 31, 2010

If your Internet Cable Provider allows it,you will need :

1. Crossover-wired, or "null," category 5 Ethernet cable for the cable modem to be connected.
2. 10BaseT or 100BaseT Hub or Switch.
3. Straight through, or standard, category 5 Ethernet cable (one for each computer to be connected).

Be sure to check with your Internet Provider first.

RCA DCM425... | Answered on Dec 24, 2010


This might sound like the "easy way out", but years of bad experience with this devicehad tought me that in this case - the only solution is to have the modem replaced. If possible, ask for a different modem model!

In case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

Best regards,

RCA DCM425... | Answered on Dec 11, 2010

control panel admistrive tools,computer management,device manager scroll down universal serial bus controllers you should see a yellow question mark? right click to reinstall drivers or ports(com&lpt)right click update driver or scroll to disk drives if you can see your drive + to expand right click you should see options to update driver,disable,uninstall scan for hardware changes. or select properties you should see options in the general tab to troubleshoot,policies,volumes,driver and details under the driver tab you will have the options to check the driver details,update driver,rollback driver or uninstall
hope this helps

RCA DCM425... | Answered on Dec 09, 2010

This is an excellent generic guide as I can find no port forward info in the manual for your device..

If your device supports it, this guide will help you..

RCA DCM425... | Answered on Dec 09, 2010

hello, im confused here, have you a cable modem or telephone line. if you have a cable modem then you plug an ethernet lead rj-45 from your modem to your router.but if you've a telephone line then you have to connect a filter to you telephone box an a rj-11 lead from your filter to your router hope it helps


RCA DCM425... | Answered on Nov 28, 2010

hi, rmoriconi
pay no attention to people that tells you that that switch turns your wireless on and off..you do not have a wireless modem

all it does is block your incoming and outgoing internet service, its a security feature and thats it

(your modem is not wireless, if it is, its the first wireless modem i have ever seen)...


RCA DCM425... | Answered on Nov 15, 2010

Re-install the setup disc.

RCA DCM425... | Answered on Nov 15, 2010

Not finding what you are looking for?

419 questions posted

Ask a Question

Usually answered in minutes!

Top RCA Computers & Internet Experts


Level 3 Expert

13434 Answers


Level 3 Expert

85216 Answers

Brad Brown

Level 3 Expert

18121 Answers

Are you a RCA Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

RCA Computers & Internet

  • RCA Computers & Internet

Most Popular Question

open ports netflix

  • Computers & Internet