Price was great. I need a powerful modem
934650
It is not the right thing I need. Price was great. I need a powerful modem.
1125074
I've been wanting to buy my own cable modem for a while now, because shelling out $7 every month to Comcast is pretty ridiculous. I kept putting the purchase off because there's nothing fun or exciting about a new modem -- it's practical, not fun. However, Dell recently started carrying this model, and since I have an account with them I went ahead and ordered it. I was happy to find that Amazon's price was only about $5 cheaper... 75 at Amazon vs 80 at Dell. Dell is usually way more overpriced than that. I'm excited to see my next Comcast bill with no modem rental fee!

I have Comcast in metro Detroit. I had no problem at all setting up this modem... besides the fact that there was an hour wait time for tech support. Naturally, I was able to get a salesperson on the phone within 30 seconds but she had to transfer me for that request. Anyhow, once I was transferred to an overseas call center (only the best for Comcast's loyal customers!) the rep was able to help me out. She was a little slow -- I'd say the call took about a half hour -- but she never once as much as suggested that the modem wouldn't work or wasn't compatible. She simply took the MAC address, and spent a majority of the time doing things in the computer while I waited. After restarting the modem and Comcast sending another refresh signal, I was up and running. Ran a speed test, and got similar results as I did with Comcast's rental modem. Speeds were just as fast (~30mbps) as before, but the ping time was a little bit faster. I don't know if it's all in my head, but it seems that my web pages load faster now.

If you're worried about this modem not working with Comcast, don't be. I did research about the problems so many people encountered and found out it's been taken care of for a while. The problem with the modem not working that many others mentioned happened when Comcast upgraded to IPv6, which is a protocol used to identify devices on the internet. The modems weren't dead or broken. Comcast upgraded to the new protocol before this modem had it implemented in its firmware. When that happened, the modem was rendered temporarily incompatible with the network. Comcast quickly rolled back and got everyone back online. However, this modem is now compatible with IPv6 so that won't be an issue anymore. This modem is listed as supported on the Comcast web site, and you shouldn't have any issue activating it once you receive it.

The modem is pretty nice looking; definitely nicer than any other modem I've used. It it seems familiar, it's probably because it has the same shape and design as one of their routers from a few years ago that was pretty popular. I even had one myself that I upgraded about a week before I got this modem. I'd prefer it in black instead of white, but it's not like it's going to be a design piece. The lights are more informative than other modems. Instead of just solid lights with labels printed underneath, the lights are actually backlit icons so you can immediately see what the light is for when glancing at it. Instead of 5-6 square lights, I have a power icon, an online icon, and the downstream/upstream icons are arrows pointing down/up. Even the icon showing ethernet connection is in the shape of a LAN icon.

So, even though I just got this modem today, I already really like it and would recommend it. It looks nice, I had no problem activating with Comcast, and it seems to have less lag than my old Comcast modem. If you are shelling out $7 each month to Comcast like I was, this modem will pay itself off in just under a year. Spending the money up front is well worth it to me, because Comcast is already getting too much of my money as it is!
3867101
It is the latest DOCSIS 3 modem for the best price when using Time Warner cable, it does require activation from Time Warner.
1559547
Had modem for a year and bought used here on Amazon worked great then one day i get home and internet is out but modem and router are still on and looking normal.  Called comcast to reactivate and they refuse because it is past the End of life for service as of 07/2013 I beleive this also why they dropped my internet.  Basically no matter how hard i tried they refused to send activation up unto this point i have never had a issue with modem I don't know if they pushed some firm ware thru or what but just be wary. Modem was great and still would be great Comcast is the problem.
2145394
Refurb....looked and acted brand new, much faster as in tripled speed increase

note....sb6121 4 down 4 up..channels ----this modem is ok if u have a 50down service
sb6141..8 down 4 up.....i went from 55 down...7 up ....to 160 down 10 up-----this modem if u have 100 + down
75436
The Modem works great. The problem is that to get 200 mbps you also need your 1. Router, 2. Network card, 3. Cables, 3. Cable company to also be capable to deliver 200 mbps. In my case my 2 yr old I7 laptop does not have a worthy networking card, so I am doomed.  Unless I upgrade my laptop AGAIN!!!  No.
1576398
As others have and will say.  This is the best deal for an excellent Cable Modem.  At this price point I will be able to justify the cost just because I won't be paying rental anymore.  Less than a year to make the money back.  The older modem I have been renting isn't as capable of the speed this one is.
4680589
Had it for a couple of weeks with Spectrum.  I had to upgrade my previous cable modem to get the full 100 Mbps speed of my Spectrum service.  The modem got gummed up once which limited DL speeds to only 2Mbps or so, but a reboot took care of the issue.  It hasn't happened again, thankfully.

The LED Lights are EXTREMELY bright, and flash continuously.  You won't want this in a bedroom.  Even in a bedroom closet, it's likely that you'll see the lights under the closet door.

The price is great - you'll pay for this in 10 months or so.  It's a little bit of a pain getting the cable provider to setup the modem.  Be prepared for 15-30 minutes on the phone to get it activated.
4166231
Great modem for the price, went from a 6121 to this was very pleased, getting the actual speed I pay for.

I did have to call Spectrum to activate it, but it was easy and I was up and running within minutes of plugging it in. No issues so far, very happy!
4303232
This was the best price i found on the internet for this modem. It was brand new as listed and came in unopened packaging. I had no issues calling my cable company and setting up this modem. i recommend this  to all users looking to to buy their own modem to save money on their monthly bill.
2586635
I bought this modem because my cable provider just raised the modem leasing fee to $8.00/month. I all ready have my own modem which I got from Amazon and am happy with. I got this one for a backup since the price was so good. It works and the modem was delivered on time. What more can I say? Great price and great product.
508567
Cable guy came to install my broadband internet service, opened the box, plugged it in and was up and running with 28.58 MB in minutes.  Goodbye DSL.  Why would you pay the cable company $5/month when you can buy for less than $100?  Reviews nailed it--great modem with high speed and ease of use/install.
2438155
I began to suspect that something was wrong with my network gear when my Skype calls kept failing.  I checked my internet download/upload speeds and found them at only 8mbps.  With a bit of Googling, I realized that the cable modem I was renting (for $7.50 a month) from Comcast was nine years old.

This modem was very high on the list of Comcast-approved modems and the online reviews were very good.

I ordered the modem (great price;) got it in a couple of days(great service,)plugged it in (simple as can be,) and called Comcast to let them know to update their settings to the new modem and BAM -- 35mbps download speed.  This is a very, VERY good modem.
4225873
Modem seems to work very good, I've got the 15/5 package with cox and i pull 16mbs over WiFi. So directly from the modem I'm sure i could get a little more but pleased with everything about it.
1452820
This modem was a great price (which would
have otherwise been expensive).
It works perfectly for what we need. Highly
reccommend it.
4476325
Great modem. Small footprint and easy to hook up and it's fast. Just be sure to call Xfinity after you follow the easy set up instructions and let them know. They need to dial in your speed. Looking forward to seeing the $10.00 per month lease fee off my bill.
4890115
I've been searching for a while for a combo modem/router unit to replace the ubee one supplied by TWC that was costing me 15 bucks a month.  I also wanted a unit with the new AC protocol.  The Arris was the best bang for the buck.  I got it for loads less from the Amazon warehouse store.  Must have been a return.  The shipping plastic was still fastened to the front of the unit, and the cables were still sealed in the original packaging.  The unit itself had been removed from the plastic bag it had originally come with.  TWC activated the unit, no problem.  However, I could not get the WiFi to work.  I finally called Arras.  I was on hold for a bit, but the person who eventually answered was a great help and walked me through the procedure to get the WiFi to work.  First thing required was a reset.  This allowed TWC to download updates.  This took a couple minutes.  Still had trouble with the wifi.  Arras guy had me go online and change my channel to a less congested channel.  Now it works fine.  I did a speed test with the old modem/router and got 15 meg/sec.  With Arras, it was 17.7.  I don't know why it's faster, but I'm happy.  It has a 2.4 ghz radio, for older things like my laptop, and a 5 ghz radio for my phone and Ipad.  The both operate simultaneously.  The only con is it's pretty big.  While router/modem units all tend to run on the larger side, this one seems bigger than most.  Doesn't bother me, and the white blends in with the wall.  If you can't get this in the warehouse store, Amazon sometimes has it on sale for $150, and sometimes for $165.  Depends on the day, it seems.  Warehouse store had it for around $114.  Hard to go wrong at that price.