Easy to install with my Comcast router - now have ...
938753
Easy to install with my Comcast router - now have a full 300mbs in a detached room. (same electrical system)
2418494
Happy with the easy install and improved speed.
2710725
This was super easy to install and works very well. I used it with my comcast internet subscription. It only took 5 minutes on the phone to set it up and I instantly had internet. My internet is extremely fast and the wireless signal is strong.
4908348
This item replaces the COMCAST provided router/gateway [ARRIS/Motorola] and it eliminated the built-in xfinity public wifi. The xfiinity wifi effectively slows down the internet speed I'm paying for. In addition, i don't have to pay monthly rental of $10 through Dec 2015 and $12 thereafter. This will pay itself out in 9 months. One nice thing is I didn't have to call Comcast for equipment provisioning. I connected the Netgear cable modem, hooked up my laptop in one of the LAN cable ports and it automatically opens Comcast's website for equipment activation and requires me to log-in into my account. That's all there is to connect the Netgear cable modem router.

I previously subscribed to Comcast's Blast with rated speed of 150 mbps for a number of years but the actual speed was only between 30 - 42 mbps (wired or wireless). Then, i received a notice from Comcast for another increase on my subscription as well as the equipment rent effective Jan. 2016. Since there are not a lot of internet providers in my area that offer similar speed, i decided to step down my subscription to 75 mbps and at the same time replaced the supplied cable modem. Can't be happier with the move as the current internet speed with the Netgear cable modem is 70 mbps (LAN)  and 42 mbps (wireless). Note that the Netgear cable modem has 8 channel download and 4 channel upload.
2205948
My old Motorola Surfboard modem was sometimes dropping its connection with a DHCP error only resolved by rebooting either the modem or router.  Comcast must have made some changes since that modem was no longer supported (It used to be!).  I upgraded to this one.  Simple installation.  I had to call Comcast and they loaded their setup info.  Once they finished, I could no longer access the modem's management screens but that's not a big deal as long as it keeps working.

I've been using it for a couple of months, sometimes doing huge downloads while watching Netflix.  Very satisfied with it.
3827525
Worked great with my Comcast interest. Easy to install and set up.
4087479
Installation was surprisingly easy. Installing these things used to be more of a problem. I just removed the old router and switch, plugged in all the cables into the new ones the same way, and the installation dialog came up on my pc. I walked through the default installation procedure, setting passwords etc, and it just worked.
I have an old house with some thick walls. We have several computers connected by Ethernet cables, and lots of Wi-Fi devices. This router results in usable Wi-Fi on the 3rd floor, which we didn't have previously. I haven't tried adding a disk drive or doing anything else unusual, but I have no complaints at all about it. It seems to be doing great.
1955540
We were using an Xfinity modem / router combo. We read that Comcast's routers were noticeably slower than other routers / modems. We decided to purchase this router with the Arris modem and it's remarkably faster and the best part is, we no longer have to pay $10 / mo to rent Comcast's junk.
455390
Great product! Plug and play simplicity with Comcast.

Reaches speed 20-30mbs over my subscription of 75mbs/down

Led's are not too bright; able to hide it within my entertainment center electronics
3691803
This modem does it job well and saves me money. I bought it because it is on Comcast's  list of acceptable routers and I didn't want to pay the $8 monthly rental fee any longer. The modem was quick and easy to install. I hooked it up, called Comcast, and read them the information. It started working immediately and I have never had a problem.
4156289
I'm not sure why there are negative reviews on this unit. It was very easy to install. Just follow the instructions in the top positive review on here by Techie and you'll be fine. I didn't even need to uncheck the "IP FLOOD DETECTION" option on my unit. I highly recommend this unit as it combines both the modem and router into one unit and saves space.
3542570
This was easy to install and start using in my home network for my small business needs.
24924
I have my own router and Comcast bundled internet and phone, so my options of modems with voice was limited.

I have Comcast Extreme Pro Internet, which is Comcast's 400mbps speed.  My original modem, although working great, fell behind  because Comcast kept increasing their throughput and my modem could no longer reach the available speed that was now available to me.  I also did not want a Gateway modem from Comcast, nor a mode/router Combo

I had an Arris TM822 modem, and was getting about 275 mbps speed with a wired connection through my router.  Once I installed and activated the new modem, I am now getting about 475 mbps download speed - about a 1.7 increase in speed.  Note my upload speeds did NOT change - only the download speed.  Still getting about a 12 mbps upload speed with either modem.

Here are steps for an easy install:

1. take note of your Comcast userid/password and customer ID.  Take a picture of the back of the modem that has the serial number and MAC address (you will need to supply the MAC address later to Comcast - there are two MAC addresses - one is actually one digit higher - they will ask for CM MAC address first and MTA after).
2. run a speed test so you can compare  .. use a hard wired connection to your router (or modem)
3. power down your old modem and router.
4. connect new modem, connect cable, power, etc.  Do not connect to router.
5. connect a HARD wired connection from the modem to a laptop or computer (same cable you would have used to go to your router, except temporarily this will only go to your computer/laptop)
6. wait for the lights on the modem to have three solid lights (not blinking) - this might take five or 10 minutes
7. open up a browser window on the laptop
8. go to address xfinity.com/activate  with your browser- the address will come up once the modem has synced with Comcast.  Keep trying every few minutes until you get connected, or watch the lights.
9. follow the prompts with your user name and password of your account
10. plug your phone line into the line 1 port of the modem and test your phone for incoming and outgoing calls
11. test the internet connection by going to another website .. you can also check the speed at this time
12. once your are satisfied the connection is working, you can now plug the cat-5 or 6 cable that goes from the modem to your computer laptop to the input port of your router.  Then power up the router and you are done.
13.  Other people have indicated that you then have to contact Comcast and tell them your mac address of your modem, model number etc.  that is on the back. Make sure it is exactly right.  I called Comcast about 10 minutes after install and they did not have the information and needed to put it into their database.  They then rebooted my modem from their end again because it did not have the latest and greatest updates on their end.  I had to recycle my router after they rebooted to get the new speed again.  I would highly recommend contacting Comcast so there is no issues.  Call 1-800-Xfinity and go to the activation people.

No issues so far with the modem, but it has only been running about 8 hours :)

Only negative is that for this type of router, Netgear supplies a cat 5 cable, when they should be including a cat 6 cable for pennies more.
819334
I bought this to replace the Comcast cable modem. It's on Comcast's approved product list and installed with no problems.

I think it actually works better now than it did before with the Comcast hardware, but I can't really prove it.
1494484
Have had in use for about a month now on Xfinity/Comcast and it works just fine.  Totally reliable and easy to install with Comcast.  I originally purchased the bigger/faster 24x8 version from Costco, but further research determined that I could buy this unit for less than 1/2 the price and it would deliver all the speed possible from my mid-tier Xfinity internet plan, so I returned that one unopened at my local Costco store.
2642778
I decided to pick this up after having numerous outages with the Comcast supplied router. I have this Netgear router in service for a month now with no outages. I was surprised that there really is nothing to configure on this device accept for the password.
1710445
This was easy to set up (Comcast on the other hand was a disaster...sigh) and simple to use. I would definitely recommend investing in a product like this over renting from your provider!