Question about RCA Thomson Digital Cable Modem (DCM305R)

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New RCA Thompson modem/router model DWG855T from cable company -WiFi working fine (speedtest is 0ver 11mbps download speed) on all computers throughout the house, BUT XBox Live keeps freezing up and I'm getting kicked off XBox Live after signing on. Message says it is a connection problem. Do I need to open ports? If so, how do I do that? Thanks in advance

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frcs68
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SOURCE: wireless router problem help fast plz

connected the CST-5 in the following manner.
1). one cable from speedtouch LAN port to sparklan WAN port
2). one cable from sparklan LAN port to the computer network port.
3). disable the DHCP from the parklan (consult your users manual how to do that).
4). restart all of the equipment in the following order. (This is important)
speedtouch, sparklan, computer, laptop.

do not rate the answer till you have the whole thing figure out.

Posted on Jan 13, 2009

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  • 83 Answers

SOURCE: DHG535-2 and LAN switch issue

It sounds like the LInksys that they replaced was also a router. A router will route packets to multiple pc's that are connected to it. The cable modem just sees the router as 1 pc. When you use a switch, the cable modem will see all of your PC's. and Comcast just allows 1 pc. You will need to buy a router to use more than 1 PC which will be cheaper than using Comcasts Home Networking service which will network up to 4 pcs

Posted on May 30, 2009

hichama9
  • 65 Answers

SOURCE: i lost the disk for the RCA DCM425 digital cable

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,

Posted on Oct 30, 2009

  • 1 Answer

SOURCE: how do i open ports on my rca thompson router

I would also love to know the answer to this I need to open my port to on the modem so I can use the network camera.

Posted on Sep 02, 2010

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1 Answer

I want to replace RCA DCM425 cable modem with new, compatible device to continue feeding internet (by ethernet cable) to my desktop (like the present) and provide new WiFi to the home. Please advise. Thank...


You have two choices to achieve your goal (which I understand is to have both you desktop plugged by Ethernet and WiFi throughout your home) :

1. The cheapest way :
You need not be replacing your cable modem, but adding a router to it. There are numerous routers which are WiFi enabled. You can then plug your PC to the router and have WiFi.

2. The cleanest (but less cheap) way :
There are cable modems on the market which will do the job, like the Motorola SURFboard SBG900 DOCSIS 2.0 Wireless Cable Modem. Once plugged in place of your old modem, depending on your provider, you will either have to download and install the software for your new modem (which should be prompted on your PC when you try to access the Internet), or call the provider to activate the new modem.

May 09, 2011 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

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I just got xfinity cable internet that is connected through a linksys wireless g router and a arris cable modem. when i do a speed test at 2wire.com, my speed is only 2.7 Mbps. I believe it should be 16....


To correctly check James, I would connect a computer directly to the modem, and test at speedtest.net. If that DL speed is fine, then I would connect the router, and plug a computer directly into the router and test again. If that number is fine, then you can narrow your issue down to WiFi speed only. All of the ports on the back of that router should be at least 100 Mbps ports. So that should not be the bottleneck. If your speed directly attached to the modem is slower than you expected, I would contact your carrier.

Mar 21, 2011 | Computers & Internet

1 Answer

I have one modem, one router and four computers. I would like to wire one of my computers to the modem for ethernet internet access and a router to the same modem for wifi. Can I do this? All Mac...


yes just need a wireless router this regular have 3 or 4 ethernet conectors for computers for network cable , conect your modem to your new wireless router

Nov 15, 2010 | RCA Thomson Digital Cable Modem (DCM305R)

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

EMule TCP Port 11522 not reachable


Does you norton program have a firewall included with the software? If so, your windows firewall was probably turned off automatically because having two firewalls running simultaniosly can cause a conflict between the two firewalls and therefore will not work correctly.If you have a firewall included with your norton software make sure it is turned on and leave your windows firewall off, other wise turn your windows firewall back on.

As far as your situation with the broadband modem, I have to ask: Is your Thomson hardware a broadband router (wireless/wired), or are you using an access point? (wireless/wired) If you are using a "router" there is no way to set it up to work with the modem the cable company provided you. However, if the Thomson modem hardware is an "access point" the only thing I can suggest is to follow these steps:

1) Pull the power cord out of the back of the modem that the cable company provided to you.

2) Next, plug in your Thomson router in to the ethernet port of the computer.

3) You are then going to configure that device. Start by going to the "network and Internet" section in your control panel. There should be a section in there where you can click that says "setup a new network connection" There should be an option to set up and "access point" and it will search for your hardware. If your hardware is found you will probablybe promped to input information about your router and once that's done it should set up successfully. If it isn't successful by some chance don't give up just yet! Go to step 4-

4) Shut down your computer.

5) next, switch the ethernet cable going from your Thomson hardware to the modem from the cable company.
6) You will then need a second ethernet cable to go from a second port of the Thompson hardware in to the ethernet port on your computer.

7) next, plug the power cord back in to the modem from the cable company and your Thompson hardware and start up your computer.

You should be able to get a wired internet connection if all goes well. If you have a wireless access point go ahead and set up a separate internet connection only this time choose "wireless" and choose your settings. I hope this helps. Feel free to contact me anytime if you have more questions. Happy Holidays!

Rachel

Dec 04, 2009 | Computers & Internet

2 Answers

Last month Building contractor was working in my area and disrupted telephone service with his backhoe. ( telephone lines are burried underground). Service has been restored but ever since the mishap are...


Most ISPs have speed test programs on their site.
You can uses their system or this one:

This page gives you some really good advice about collecting information from your modem / router to give to the ISP concerning your modem's operation:
http://www.kitz.co.uk/adsl/linestats.htm#how_linestats

Please vote if this has been of any help to you

Oct 08, 2009 | Computers & Internet

1 Answer

Always lose connection while playing playstation 3 online. Sometimes my computer displays a launchmodem error when trying to get on the internet. If I unplug the modem and router, it works again.


Please give some information on your router and modem brand/model, also what type of connection do you have, cable, dsl, etc. Go to speedtest.net and post your upload and download speeds as well.

Are you connecting to your play station wirelessly or through network cable directly to the back of the PS3?

Depending on your speeds your connection could be overloaded by the high demand the PS puts on your internet connection, or if you are wireless you could be in far range from where the router is located. Hope this helps. The extra information might help.

Sep 17, 2009 | NetGear WGT624 Wireless Router

1 Answer

Is my modem a WiFi router?


This RCA DCM 425 is a cable modem only its not even a router, its just a plain cable modem that is being provided by some cable company like Cox and Comcast, try searching again for a different box there they have a brnad name of Linksys, Netgear or Dlink because those are the common manufacturer of wireless router ...

Hope that helps............

Sep 18, 2008 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

1 Answer

Split speeds on modem


I have never seen a router split speed evenly for the number of computers plugged in. Typically all bandwidth is available to any one computer using the service and it becomes proportianlly less as others start using it. Just because four computers are plugged in doesn't mean each will get 1/4th the total speed, it all depends on what they are doing. Perhaps you have a problem with your wireless connection itself since your first speedtest was using a cabled ethernet connection. Check to make sure you have a strong signal and that windows is reporting a good speed (11mbps, 54mbps, etc). If the signal is real low then speed can drop to below 1mbps. Finally, are you conducting the exact same test each time (like www.speedtest.net). A file download from a site isn't the best test of speed since it can vary drastically as others users hit the site.

Sep 01, 2007 | Dell TrueMobile 1184 Wireless Broadband...

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RCA model DHG525


Okay, set it up with the cable company so that the computer is running off of the new modem ONLY! Now, READ the book for this one, you need to go into the router using the 192.168.xx.x address, which comes from the book. You need to emulate the MAC address of the computer you set up to use the service first. Dlink routers are cheap, but if they were easier to use they would cost more. I do high speed for a cable company.... later..

Dec 25, 2006 | RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

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