Reddit Reddit reviews Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem

We found 28 Reddit comments about Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem. Here are the top ones, ranked by their Reddit score.

Computer Networking
Computer Networking Modems
Electronics
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Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem
Designed to provide a cost effective, next generation technology to offer a high speed residential or commercial service tier. Item is Cable MODEM ONLYUser-friendly online diagnostics and bonded channel status pageFeatures a 10/100/1000Base-T Gigabit Port for incredible wired network speedsCapable of downloading up to 2000 times faster than 56k analog phone modems; up to 4 times faster than DOCSIS 2.0 broadbandIntuitive, easy to read front panel operational status LEDs
Check price on Amazon

28 Reddit comments about Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem:

u/niccogp · 6 pointsr/StLouis

Ditto everything here. No complaints with Charter for the most part.

Before you go through the headache of moving away from Charter, you might look into a DOCSIS 3.0 modem. I've been back with Charter for about a year, and did a self-install activation of an old, generic DOCSIS 2.0 modem that came with my Charter account circa-2004. I was getting frustrated with disconnects and TERRIBLE bandwidth during peak hours.

So I decided to buy a Motorola Surfboard DOCSIS 3.0 modem. It made a huge difference in connection speed and stability.

http://www.amazon.com/Motorola-SB6120-SURFboard-eXtreme-Broadband/dp/B001UI2FPE

u/MaLaCoiD · 5 pointsr/ipv6

The cable devices that will initially support IPv6 are listed here and are shown with a checkmark in the IPv6 column (click the top of the column to sort by that variable). This list will expand in the coming weeks and months as we complete testing of other devices.

Currently: SB6120, WBM760A, and DCM-301. The 6120 is the one I'll probably get because there's a modding community using it.

I couldn't find mention of which markets they're targeting.

u/JuggleNuts · 4 pointsr/Iowa

I've had this since 2011, no issues.

Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem https://www.amazon.com/dp/B001UI2FPE/ref=cm_sw_r_cp_awd_Yu.LwbQ1D2R0V

u/barrettj · 4 pointsr/madisonwi

I have this one. According to Tracktor I just lucked out when I got it for $60, it usually hovers around $85 apparently.

Edit: I forgot to mention this in my previous posts, but after your "introductory price" goes away, wait a month or two and call them up saying it's too expensive and that you'll have to cancel. They'll transfer you to someone and you can usually get another introductory price for a few more months.

u/johnix · 3 pointsr/Albany

Motorola SB6120

I paid $37.96 last April for a used one at my old apartment (my former roommate still uses it), $35.95 back in August for a used one at my current apartment. Both have worked beautifully with no problems besides one or two isolated service farts. Currently priced at $31.60, basically four months worth of rental fees.

u/bilbravo · 3 pointsr/baltimore

I'm not who you were responding to, but I don't recall paying an installation fee when I got it set up. If I did it must have been negligible ($20?).

I'd recommend purchasing a modem if you go with Comcast. You can buy a new one for about $80 or you could try Craigslist and get one for less. It saves you $7 a month.

u/bacon_cakes · 3 pointsr/olympia

>stock comcast modem

There's your problem.

I've never known anyone who hasn't had tons of problems with their internet using a modem provided by their ISP. Grab one of these and stick with comcast. Not only will it pay for itself in about 6 months because you won't be paying comcast for the modem rental, but it'll also be yours to keep and use no matter which cable service provider you go with in the future.

u/Immatix · 3 pointsr/networking

You'll want something with DOCSIS 3.0 and IPv6 support. It may also be advisable to search around to see if anything you find will work on Comcast- it can be a grey area sometimes.

That said, I haven't actually bought a modem on my own before. My suggestion would be the Motorola SB6120. I believe it's the successor to the almost ubiquitous SB5120. It is also future proof with DOCSIS 3.0 and IPv6 support.

As for compatibility with routers, it should work with anything. Keep in mind of course if you wish to use IPv6 you would need a router supporting IPv6 too- probably not something you'll have to worry about for a while, as Comcast hasn't fully rolled out IPv6 yet.

When buying your own modem, you will have to contact Comcast and give them the unique MAC address of the modem. This is so they can add it to your account and provision it.

Lastly, look around at different places for pricing. As an example, the SB6120 is $90 on Newegg, and $78 on Amazon.

u/wrdprt · 2 pointsr/BuyItForLife

You want a DOCSIS 3 modem if you're going for something somewhat "future-proof", like others mentioned this is not really a bifl item. That said, I'm going on year seven for my Motorola Surfboard MB6120; not sure they get more bifl than that. I guess it's only fair that I mention all my expensive electronics are on power supplies to protect from surges and outages, that may (within reason) be a bigger factor than what brand / model you buy. I have Charter Communications, for what it's worth.

If you do want ddwrt or some other custom firmware, I have read the old blue boxy looking linksys modems are optimal for that.

u/crs- · 2 pointsr/techsupport
  1. Yes, I have tried with and without the router and speeds are pretty much the same
  2. No
  3. No

    the router is a Motorola Surfboard SB4100 which is a docsis 1.0 modem. I already ordered a SB6120 that will be coming in the mail tomorrow.

    thx for your help
u/philo_the_middle · 1 pointr/Comcast

Well there's a few things that might have happened:

  1. More noise on the line or signal strength drop
  2. Something bad in the modem itself
  3. Buggy firmware on modem recently updated from Comcast

    Who knows?

    Regarding the cost, $115 is way, way too much for a modem.

    Here's the one I had (but had to upgrade when I went to 300Mbps package):
    https://www.amazon.com/gp/offer-listing/B001UI2FPE/ref=dp_olp_all_mbc?ie=UTF8&condition=all

    It should suit you fine for 75MBps.

    EDIT: And it was certified with Comcast but they don't show it now since its a few years old and probably doesn't support 150Mbps or greater internet speeds. The Motorola page says this modem can support up to 150Mbps only.
u/formosan1986 · 1 pointr/hardwareswap
u/Tigerwraith · 1 pointr/cordcutters

Ive just looked at the compatibility list comcast has, and I do believe i was told a lie....

https://www.amazon.com/Motorola-SB6120-SURFboard-eXtreme-Broadband/dp/B001UI2FPE

I do believe thats the modem I used for my residential connection.... err im so mad now.... over 360 bucks to Comcast for no reason....

u/timsandtoms · 1 pointr/cordcutters

I've been using the SB6120 for the past few years, and it's been damn near perfect. I'd certainly feel safe with the one you linked.

u/Dark_Shroud · 1 pointr/news

The price is fair but the the wifi in that unit is out dated vs what going with separate units that allow you more control and flexibility.

The only real benefits are a built in firewall and the four gigabit ports.

I have an older SB6120 that I can't really use at the moment without getting a new wireless router. Because I don't have a hardware firewall.

u/Flavourized · 1 pointr/buildapc

What ISP do you have?
A good amount of ISP's tend to give a modem that takes the connection from your wall port, and allows for you to use an ethernet cable to plug into a router, or directly into your PC. You are right in that it is a combo.

First see if the ISP will give you a non-combo modem. If not, a motorolla modem is a good choice. Get the wire from the wall, plug that to your modem, and the get the ethernet and plug one end into the modem and then one end to the wireless router, and then you should be set.


Modem

Router

u/Zwig · 1 pointr/WarOnComcast

I switched to my own modem about 8 months ago. In my area of the lovely town of Oakland, ca..I pay $75/mo for 25down.

Since the switch to This my average speed is 80mb+

u/faultlessjoint · 1 pointr/Comcast
u/player2 · 1 pointr/Seattle

Amazon is a local business. That's who I bought my Motorola SB6120 from (don't worry, not affiliate spam).

Yeah, it's $150, but it works great and supports DOCSIS 3 and therefore IPv6.

u/The_Cave_Troll · 1 pointr/techsupport

If you want a new (which I suggest), you can expect to pay around $140 for both the modem and the router. Here's an awesome modem:
http://www.amazon.com/Motorola-SB6120-SURFboard-eXtreme-Broadband/dp/B001UI2FPE

It's the same one I want to get for myself. I don't think you need a new router though, just get a new modem, and it will probably be alright.

u/CapsUnlocker · 1 pointr/pcmasterrace

> I haven't looked at that netgear overview but hopefully they mention that not all DOCSIS 3.0 modems are created equal.

No it doesn't. It is a really simple overview and doesn't even go into speeds or anything. But you make some very good points. I remember when I got my first upgrade to 100 Mbps (I was on 15 Mbps previously because that's what was available) I was looking at some DOCSIS 3 modems and was surprised there's still modems that are in-fact sold with just 2 channels for example and are around the same price point as 8 channel modems.

Example: On Amazon this Motorola SB6120 DOCSIS 3.0 "eXtreme" cable modem only has 4 channels and is $91.29

On Amazon this ARRIS SB6141 DOCSIS 3.0 modem has 8 channels and is only $68.75.

Also of note, the ARRIS SB6121 DOCSIS 3.0 modem has 4 channels and is $69.85.

So you've got to be careful. I chose the SURFBoard series because there are a bunch of them and if you go by just the branding or price point alone, you could get something you don't want.

u/AgentMull · 1 pointr/techsupport

You mean this SURFboard? I just bought it 2 months ago.

u/Kllian · 1 pointr/Atlanta

Any DOCSIS 3.0 modem will work such as this one.

http://www.amazon.com/Motorola-SB6120-SURFboard-eXtreme-Broadband/dp/B001UI2FPE/ref=sr_1_sc_1?ie=UTF8&qid=1319670679&sr=8-1-spell

You can drop off the old modem at a local comcast office and save yourself the day of waiting.

u/zephiKK · 1 pointr/HomeNetworking

I just looked up, which SB6120?
https://smile.amazon.com/ARRIS-SURFboard-SB6141-DOCSIS-Package/dp/B00YUU5628/ref=sr_1_1?keywords=sb6120&qid=1565206658&s=electronics&sr=1-1
or
https://smile.amazon.com/Motorola-SB6120-SURFboard-eXtreme-Broadband/dp/B001UI2FPE/ref=sr_1_3?keywords=sb6120&qid=1565206658&s=electronics&sr=1-3

If it's the second one then SB6183 will be a significant upgrade as you're going from DOCSIS 2.0 to DOCSIS 3.0. DOCSIS is a standard for cable internet.

The first one, the difference is that you're going to have more bonded channels which will make it less likely for your internet speeds to be affected by other people on your block who are also using the internet since it's cable technology. An example would be, your speeds at 4 AM will be higher than speeds at 9 PM since more people on your block uses the internet during that time frame. With DOCSIS 3 and more channels, the slowdown from other users will be lessened.

Do me a favor and do a speedtest on www.speedtest.net with your current setup on Ethernet so we can get an idea if you even need to change routers in the first place. Or are you renting one from the ISP?