Customer Ratings & Reviews
- Model:
- SB6121
- |
- SKU:
- 2836657
Customer reviews
Rating 4.6 out of 5 stars with 2915 reviews
(2,915 customer reviews)Rating by feature
- Performance4.6
Rating 4.6 out of 5 stars
- Ease of Use4.7
Rating 4.7 out of 5 stars
Customers are saying
Customers admire the SURFboard DOCSIS 3.0 High-Speed Cable Modem for its ease of use, performance, and affordability. Many appreciate the straightforward setup and compatibility with their internet providers, along with its compact size. While some experienced issues with the modem's WiFi capabilities and occasional overheating, the positive feedback on performance and ease of use outweighs these concerns for most users.
This summary was generated by AI based on customer reviews.
- Pros mentioned:Performance
Rated 5 out of 5 stars
Better than the one I was renting.
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This modem preformatted far better than the one I was renting from my internet provider I am very pleased.
I would recommend this to a friend - Pros mentioned:Performance
Rated 5 out of 5 stars
Very good modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I have two of these modems in my home and have never had an issue with either them or their performance.
I would recommend this to a friend - Pros mentioned:Performance
Rated 5 out of 5 stars
Modem works great
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.So far if works just as good as the rental I had. Would recommend to anyone who is renting from comcast.
I would recommend this to a friend - Pros mentioned:Setup
Rated 5 out of 5 stars
Great product.
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Easy to install and setup. Just plugged all the cables and didn't even needed to install any programs.
I would recommend this to a friend - Pros mentioned:Price
Rated 5 out of 5 stars
The modem works great
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.The modem works great. The cable provider gave the specs and I liked this. It's been a great value for me.
I would recommend this to a friend - Pros mentioned:Performance
Rated 5 out of 5 stars
Great wifi modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Bought with the Apple router and it works much better than any rented equipment from internet providers
I would recommend this to a friend Rated 5 out of 5 stars
Simple setup
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.I installed this modem for Time Warner/Roadrunner. You'll need your TW account number and the MAC address number (printed on the box). Swap out the old modem with the Motorola. Then just call TW's support line and tell them you want to install your own modem. Give them the MAC address number. After that, the modem will reboot. If you have a router, you should reboot that also. Stay on the line until you verify that your Internet is working again.
I would recommend this to a friend- Pros mentioned:Price
Rated 5 out of 5 stars
Great router, compatible with Xfinity
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This router does exactly what we need it to do. Well priced and it is compatible with our Xfinity provider
I would recommend this to a friend - Pros mentioned:Performance
Rated 5 out of 5 stars
Great cable modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Works great!!!! It will save me money in the long run instead of paying a monthly fee to rent a modem.
I would recommend this to a friend - Pros mentioned:Performance
Rated 4 out of 5 stars
Go to cable modem.
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This has been the steady, reliable choice for many years and continues to be the bread-and-butter modem unless you have very specific needs.
I would recommend this to a friend - Pros mentioned:Performance
Rated 5 out of 5 stars
Works Well
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Got this to use with Comcast Xfinity Service in Chicago for a friend. Installed it and worked fine.
I would recommend this to a friend - Pros mentioned:Ease of use, Price, Speed
Rated 4 out of 5 stars
Was a good price and works great!
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Was a good price and easy to install, Gave me a big boost in DL speed.
I would recommend this to a friend - Pros mentioned:Speed
Rated 5 out of 5 stars
ARRIS HighSpeed Modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Works very well. Computer works much faster. Have had it for 3 years with no problems.
I would recommend this to a friend - Pros mentioned:Ease of use
Rated 4 out of 5 stars
Easy to install modem.
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This was easy to connect and works great. The light display makes it easy to see what's working.
I would recommend this to a friend - Pros mentioned:Speed
Rated 4 out of 5 stars
Very effective modem. Good constant speed
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Speed s good with limited slow time. Overall does what it says,
I would recommend this to a friend - Pros mentioned:Performance, Speed
Rated 3 out of 5 stars
modem
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.had to upgrade because of internet speed. was a good choice. have had no issues or interruptions.
I would recommend this to a friend - Pros mentioned:Ease of use
Rated 5 out of 5 stars
Super Easy and Super Reliable!
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.This modem helped replace the garbage one supplied by TWC. Plugged it in and got it setup in no time!!
I would recommend this to a friend - Pros mentioned:Speed
Rated 5 out of 5 stars
SURFboard review
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Bought this model for use on Comcast. Easy setup and great speeds.
I would recommend this to a friend Rated 5 out of 5 stars
Ridiculously Easy Install for First-timer
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Bought this because I had been getting a random decreases in WiFi signal strength in my apartment, and the signal would sometimes disconnect. bought a new router (Netgear AC1200) to replace the old Comcast one I was renting. That fixed the signal strength issue, but I would still sometimes disconnect entirely. Obviously frustrating if you are playing games online. So, next step was I bought this router. Opened the box, followed the instructions (Unplug router, plug coaxial cable and power cable into modem, use included ethernet cable to link modem to router, power on modem, power on router, thats it). Once all the right lights were flashing (under 5 min) I just opened an internet browser on one of my devices, which then took me to a Comcast device authentication page. All I had to do was put in my Comcast sign-in and password, and I was good to go. 2 minutes later, I was up and running. My connection has been smooth as butter ever since. Really wish I had done this years ago. I bought this for a little over $80 (I think?), and when you figure I have been paying Comcast $8 a month for 24 months, that's $192. This modem would have payed for itself 2 1/2 times by now! I would have had an extra $110 bucks in my bank account. Also, this modem is "future proof" in that it is running on DOCSIS 3.0, which will be the new standard cable companies everywhere will be using to distribute their services in the future. Bottom Line: I have had this for a few months now with no hiccups. Buy one! Invest in your home network, stop paying your cable company to rent when you can own!
I would recommend this to a friend- Pros mentioned:Ease of use
Rated 5 out of 5 stars
Works great, easy setup
||Posted .This reviewer received promo considerations or sweepstakes entry for writing a review.Works great, easy setup. This modem had a good rating and it was recommended to not use Xfinity's modem.
I would recommend this to a friend

