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New modem drops connection

I had a home telephone problem so Comcast just replaced my cable modem. Until now, Internet from Comcast worked WONDERFULLY - not a single issue in years of service. As soon as they installed the new RCA modem - two things started happening. First, my Apple Airport Extreme router occasionally reports that there is no connection and then auto-reconnects after about a minute. Second, DNS look ups take 7-10 seconds each time I try to connect to websites. Both problems are driving me nuts and comcast tech support is incapable of troubleshooting because they can see the modem each time I call to complain. Then they go down the path of "well, we don't support routers" and I just want to scream. :-) Could there be a documented problem between an Airport Extreme and the new RCA modem? Maybe some setting somewhere that I can change that would make the two work better together? Or is this simply an RCA modem issue and I should press for another replacement?

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6ya staff

  • 2 Answers


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Posted on Jan 02, 2017



  • 44 Answers

SOURCE: Can't get Linksys wireless router & RCA DCM 425 to work together

ok, ur old modem was configured for those two devices to work to gether
so u have to do the same here

*have ur modem connected directly to ur comptie
*go to ur command prompt if u have vista ( start * search * type cmd)
xp (run then type cmd)
the type in the screen that poped up ( ipconfig) enter
*look for default gateway type that in ur browser address
*should take u in ur modem interfase go to (advandced | PPPlocation | then set that modem on
BRIDGE MODEM and the modem should restart then connect router that should do it


rate my service please

Posted on Apr 11, 2009


SOURCE: I see that people are

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


Catalin Turcu

  • 4924 Answers

SOURCE: rca dcr425 modem, trying to

usually the connection of a router to the modem is made by selecting to get an IP automatically ...and it will do so ..The only issue is to see if the 2 devices not have the same Ip address from factory so that they are not in conflict ..If they have ..just change the one in the router..
The issue is that you didnt managed to make a internet connection directly in the modem either..This is your main concern ..After you make the modem work it will work with the router too cause you do not need much settings if it takes the You will have to enable the wireless so ...and the ports will take IP addresses in order..
Sop ..first see whats wrong with the modem ..If it is a provider preset one ..than remove it from the power plug .,..and plug it back after a while ..and it iwll get back to work ..or call the ISP and see whats wrong ..You will not be able to make it work until you have internet connection in the Wlan port of the router..
here are instructions for connecting a router to a modem ..

Posted on Aug 14, 2011

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