Forum Thread

Xfinity/Comcast Modem Question

Joe Davola 8,208 11,123 September 24, 2015 at 01:18 PM
I'm thinking of buying a modem rather than leasing one from Xfinity. I believe the current max speed in my new area is 150 Mbps (although I was hoping for 300 Sadwalk). Are there any modems HERE [comcast.net] that I definitely shouldn't consider or is there any reason I can't buy the cheapest one and get the same results? Here's a full list of all the recommended modems: http://mydeviceinfo.comcast.net/

Thank you! Reps will be provided. nod

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Joined Nov 2005
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#2
Moto/arris 6141 (343/141 D/U). Hands down the best.

Of course that's a modem only, no voice.

I've been using the 6121 for several years on comcrap and it's SO much better than the POS modem they were renting me.
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#3
Joe,
Very smart of you to wise up and quit renting a modem. But I was wondering if you are running any router at all on your current setup, or if not, do you plan on getting a router also? Personally, I like running a separate modem and router, as most of the combined modem-router units make sacrifices in features/performance for the simple advantage of a more compact unit. I currently run a Arris/Motorola SB6183 which is 16 channels downstream, and 4 channels upstream, with a theoretical max of 686 Mbps down, plus an Asus RT-AC68U router. I love both of these units and they rock big time.

As for the modem, there are 2 "schools of thought". One is simply to get the cheapest, yet "decent" quality for today's current speeds... and the other method is to spend more to get closer to "top of the line" to "future-proof" for higher speeds to come. Yes, you could pic any modem from the Comcast recommended list, as they all are tested and certified modems. Some perform better than others, but I don't see any ones to 'avoid' on the list. For instance, I knew friends that had the cheaper Zoom modem, and they performed well. The main point is,,, ANY modem from that list will be better than wasting away the rental costs to Comcast each month.
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#4
Quote from Accster View Post :
Joe,
Very smart of you to wise up and quit renting a modem. But I was wondering if you are running any router at all on your current setup, or if not, do you plan on getting a router also? Personally, I like running a separate modem and router, as most of the combined modem-router units make sacrifices in features/performance for the simple advantage of a more compact unit. I currently run a Arris/Motorola SB6183 which is 16 channels downstream, and 4 channels upstream, with a theoretical max of 686 Mbps down, plus an Asus RT-AC68U router. I love both of these units and they rock big time.

As for the modem, there are 2 "schools of thought". One is simply to get the cheapest, yet "decent" quality for today's current speeds... and the other method is to spend more to get closer to "top of the line" to "future-proof" for higher speeds to come. Yes, you could pic any modem from the Comcast recommended list, as they all are tested and certified modems. Some perform better than others, but I don't see any ones to 'avoid' on the list. For instance, I knew friends that had the cheaper Zoom modem, and they performed well. The main point is,,, ANY modem from that list will be better than wasting away the rental costs to Comcast each month.
I would have suggested the 6183 but saw his speed comment.... it's a toss up if you want to future proof a bit more and go for the 6183 over the 6141 (or the 6121).

Here is a good comparison of them:

http://jamescausian.hubpages.com/...able-modem

Essentially the 6121 can do 160/131 (D/U respectively), the 6141 343/131 and the 6183 686/131. The prices are different however.. From Amazon the 6121 is about $70, the 6141 $85-90 and the 6183 $125.

theoretically the 6121 exceeds the OP's projected speed and is just over half the cost of the 6183.

Implicit in my assumptions was a separate router.... modem./router combos (one unit) aren't even in consideration for me.
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#5
Quote from Dr. J View Post :
Moto/arris 6141 (343/141 D/U). Hands down the best.

Of course that's a modem only, no voice.

I've been using the 6121 for several years on comcrap and it's SO much better than the POS modem they were renting me.
Thanks! Repped.


Quote from Accster View Post :
Joe,
Very smart of you to wise up and quit renting a modem. Thanks. Although I'm actually moving and I'm not renting a modem currently. But I was wondering if you are running any router at all on your current setup, or if not, do you plan on getting a router also? From what I read I will need a separate router for best performance. Personally, I like running a separate modem and router, as most of the combined modem-router units make sacrifices in features/performance for the simple advantage of a more compact unit. I currently run a Arris/Motorola SB6183 which is 16 channels downstream, and 4 channels upstream, with a theoretical max of 686 Mbps down, plus an Asus RT-AC68U router. I love both of these units and they rock big time. Thanks!

As for the modem, there are 2 "schools of thought". One is simply to get the cheapest, yet "decent" quality for today's current speeds... and the other method is to spend more to get closer to "top of the line" to "future-proof" for higher speeds to come. Yes, you could pic any modem from the Comcast recommended list, as they all are tested and certified modems. Some perform better than others, but I don't see any ones to 'avoid' on the list. For instance, I knew friends that had the cheaper Zoom modem, and they performed well. The main point is,,, ANY modem from that list will be better than wasting away the rental costs to Comcast each month.Thanks! Repped.
Quote from Dr. J View Post :
I would have suggested the 6183 but saw his speed comment.... it's a toss up if you want to future proof a bit more and go for the 6183 over the 6141 (or the 6121).

Here is a good comparison of them:

http://jamescausian.hubpages.com/...able-modem

Essentially the 6121 can do 160/131 (D/U respectively), the 6141 343/131 and the 6183 686/131. The prices are different however.. From Amazon the 6121 is about $70, the 6141 $85-90 and the 6183 $125.

theoretically the 6121 exceeds the OP's projected speed and is just over half the cost of the 6183.

Implicit in my assumptions was a separate router.... modem./router combos (one unit) aren't even in consideration for me.
Thanks again!

FYI I wasn't receiving e-mail notifications for this thread even though I'm signed up for them, which explains my delay in responding and thanking you two. Thumbup

BTW after all that I might end up going with FiOS now due to the 150/150 speeds and the fact that even though I don't need phone service, I can get the Triple Play for $95/month with the following premium services: HBO including HBO Family and HBO Latino, Cinemax, The Movie Package including SHOWTIME,THE MOVIE CHANNEL, STARZ, ENCORE, FLIX, plus EPIX free for a year. Plus a $300 VISA card. Dontknow

The problem is FiOS only seems to allow you to lease a modem or buy one from them for $200 (with payments spread out over 3 months). Although the $300 VISA card will cover it with a $100 to spare. laugh out loud

Decisions, decisions.....
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#6
Comcast will not give you the fastest speed they advertised 100 mbps when only 50mbps would they give,also your router matters some only give 5mbps

I had to get a different router and it only gives 35mbps

http://www.dslreports.com/forum/r...-correctly
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