Forum Thread

Comcast Cable Modem: Use theirs or buy my own?

Phylum 217 87 October 29, 2014 at 07:22 AM
I'm moving to an area adjacent to a location where Comcast is the only option.
I'll admit
  1. My knowledge of Comcast's service (reliability, customer service, speed etc) is nothing compared to the 'institutional knowledge' gained with Verizon FiOS over the last, what decade?
  2. My bleak-at-best outlook is based solely on hearsay from former Comcast users and anecdotal evidence; so nothing I've personally experienced.

So please believe me when I say I'm not here to 'pick a fight' but I'm here with as open a mind as possible.

I need help making a decision:
  1. Should I pay the $8/mo. fee for some Comcast-issued cable modem? Or,
  2. Should I spring for a potentially better Comcast-compatible [comcast.net] model?
    • If the latter, any recommendations on which models I should seriously consider and why you're recommending it?

UPDATE:
Spoke with the sales] representative assigned to our neighborhood who confirmed that Comcast does allow customers to bring their own Comcast-compatible [comcast.net] cable modem.
However, because I was getting some sort 'X1' Bundle, it was a REQUIREMENT to use the Comcast modem, which if I heard him correctly is an 'XB3' (Model DPC3941T [comcast.com] ?).
For those X1 customers: Is this true true?

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#2
when i had comcast i used my own.. i got one off of craigslist for around $30. ended up saving $84 + taxes per year i was with them over well over 2 years
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#3
YES buy your own. Stick with a Motorola (which is the same one that Comcast would give you) - they're the best.

Model depends on the speed you sign up for - if you're 100+Mb, you'll want the SB6141, 30-100Mb and the SB6121 will be fine, and below 30Mb and you can get away with an SB5xxx model, which you can easily find for $30 or less on ebay/craigslist.
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#4
With Time Warner(owned by Comcast) the sales rep said their modem was required and there was no way around that because of the phone/wifi.

But did some research and we ended up purchasing our own modem and router for internet/wifi and added a splitter to connect the phone modem provided by them.
There is no monthly rental fee for their modem if it's only being used with the phone service.

May be the same for Comcast now that they own Time Warner but not sure.


Another thing to consider when you have a Comcast/Time Warner rental modem/router.
http://www.computerworld.com/arti...ay-no.html
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#5
All: Thanks for the responses!

Quote from Jeffbx View Post :
YES buy your own. Stick with a Motorola (which is the same one that Comcast would give you) - they're the best.

Model depends on the speed you sign up for - if you're 100+Mb, you'll want the SB6141, 30-100Mb and the SB6121 will be fine, and below 30Mb and you can get away with an SB5xxx model, which you can easily find for $30 or less on ebay/craigslist.
Brilliant thanks for this suggestion. I did get some 100Mbps service (with not so exciting upload speed - the most important part for my job) so I'll check out the SB6141.


Quote from ck39 View Post :
With Time Warner(owned by Comcast) the sales rep said their modem was required and there was no way around that because of the phone/wifi.

But did some research and we ended up purchasing our own modem and router for internet/wifi and added a splitter to connect the phone modem provided by them.
There is no monthly rental fee for their modem if it's only being used with the phone service.

May be the same for Comcast now that they own Time Warner but not sure.


Another thing to consider when you have a Comcast/Time Warner rental modem/router.
http://www.computerworld.com/arti...ay-no.html
This is really good to know. I haven't signed anything yet so I'll reach back out to the rep to confirm a few things and go from there.


Do either of you use X1?
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#6
Quote from Phylum View Post :
Do either of you use X1?
These guys still don't offer it here. But seems to be interesting, sort of a smart cable box.
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#7
No X1 here either.

From what I understand, you DO need to use their equipment if you have the triple play service (internet, TV and voice) and intend to USE all 3.

For me, I have triple play because it's cheapest, but I don't use the phone service. So I still use my own equipment for internet.
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#8
the Comcast modem router has no distance so buy your own,comcast also uses its router to offer wifi to other people,which will use some of your bandwith even if they say it does not
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