Are DSL Modems the Same as Cable Modems?

mastavic · June 17th, 2009, 04:29 PM

Hello, I hope you are well.

I have been using DSL for years, but am completely new to cable Internet connection. I am planning to switch from AT&T to Comcast and have a very, very newbie question.

I have been using an Airlink AR430W Super G Wireless Router to connect to DSL wirelessly. If I switch over to Comcast cable Internet, can I still use this same router to connect wirelessly? Is there anything else I have to do (other than order the plan from Comcast, of course).

Thanks,
Victor

KarmaKiller · June 17th, 2009, 04:42 PM

Yes, you will still be able to use your router with the new connection. You'll get a new modem, plug the router into that, then you should be good to go.

Epidemic · June 17th, 2009, 04:43 PM

my cable company wants to know the mac id of the router but beyond that I think it should just work. it is IP from the modem to your router in both cases.

mastavic · June 17th, 2009, 04:44 PM

Thanks for the replies!

Do I need to get a modem from Comcast? I was talking to them and they said that if I do not need to get a modem from them, I would be able to pay a bit less (essentially, I am leasing the modem from them for $3/month). Will just the router I already have be enough? Thanks.

Victor

KarmaKiller · June 17th, 2009, 04:48 PM

yes, unless you go out and buy a new modem yourself, you will need to get one from the cable company.

**RicheemxX** · June 17th, 2009, 05:01 PM

Just to clarify for anyone else that might stumble upon this thread wondering the same things.

A modem and a router are two different things. Modems can have built in routers however routers do not have the same functionality as a modem.

DSL modems are not the same as cable modems. While the might serve the same similar functions DSL modems have a totally different input connection (rj-11 i think) where as cable modems have a standard coax connections.

Broadband routers are typically standardized, meaning aside from various speeds on the lan side (10,100,1000) and various wireless signals (b,g,n) they are universal.

You don't specifically need to get a modem from Comcast themselves, but you do need to get a modem they support. The only good thing about leasing a modem is if there are issues they will replace/repair the modem, otherwise its much better to buy your own. You can probably get one of CL or somewhere dirt cheap.