Question about RCA Thomson Digital Cable Modem (DCM305R)

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Port Forward a RCA Thomson DCM305R

The above router is not listed on the Port forward page. Is there any way I can find instruction on how to Port forward this modem. Does it go by another name. Does the Port forward link list only the routers or modems that can be Port forwarded...Plz advise if you can!

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Re: Port Forward a RCA Thomson DCM305R

it just a cable modem. I don't think it does have firewall. It won't block anything.

- Laxman

Posted on Nov 23, 2007

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I am trying to connect a playstation3 to my wireless internet, but i can't find my WEP Key.

Depending on your internet provider, this number may be listed on a sticker or printer directly on your wireless router. Try any numbers you find on your wireless router and see if they work. It is often under or near a barcode.

May 05, 2011 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

How i can setup Wifi to Thomson (DCM305R) modem?

Hello, Thanks for the opportunity to help you.

First off you modem there is not wifi but cant be hooked up to a wifi router that you can purchase from any computer store.

The modem would hook up to the router directly instead of hooking to the computer via RJ45 "ethernet cable"

The wifi router would then share that connection. You would need to set that up with some security I recommend WPA 2 encryption you will need to select a password/ or pass phrase.

In order for me to give you the How To's we would need some more information such as:

1. Brand name of router
2. Model number

Click here for some basic information on how to hook up a cable modem to a wifi router.

Thanks for using , We hope your found this Very Helpful.

Jan 25, 2011 | RCA Thomson Digital Cable Modem (DCM305R)

3 Answers

IP Address

Your ADSL port IP address will be set by your ISP and will be displayed on router status page. Your LAN port IP address is likely to be

Oct 09, 2009 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

My laptop indicates that I am connected to my wireless connection but I am unable to connect to the internet. Any advice?

Has your wireless router/modem been configured to your ISP's instructions.
You should also contact your ISP to get them to test the connection to your router/modem especially if you have a DSL modem.

Sep 20, 2009 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

I have a Thomson speed touch modem but I don't seem to have a installation disc. Can I get installation instructions on-line

here are 2 links for you,


Sep 03, 2009 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

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

May 29, 2009 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

Password for Thomson speed touch 576

look for a reset hole or button usually located in the back or under the device and hold for 15sec

May 24, 2009 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

Need default gateway

try IPconfig/all
usually the defaut gatway is the router own address. i.e. or

May 20, 2009 | RCA Thomson Digital Cable Modem (DCM305R)

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HERE is the manufacturer main link to download driver.

page also has manual on installing it and config modem properties.

Oct 16, 2007 | RCA Thomson Digital Cable Modem (DCM305R)

1 Answer

My RCA router needs to be port fowarded

Go to this page: Find your router on this list and it will give you a detailed description on how to port forward.

Aug 23, 2007 | RCA Thomson Digital Cable Modem (DCM305R)

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