NETGEAR Cable Modem CM1000 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 1 Gigabit | DOCSIS 3.1, Black (CM1000-1AZNAS)

Five minutes after arriving on our doorstep, the new cable modem is up and running. Bracing myself for difficulty with Comcast, I was pleased at how easy setup was without ever having to speak to Comcast's clueless CS. Using a laptop with an Ethernet jack, here's how easy it was:1) Wrote down my Comcast account number (This is the MOST important step!!!)2) Connected modem to cable, power, and phone line3) Connected Ethernet cable to modem and computer4) Waited three minutes for the first three lights to blink steady (they'll blink and flash while the modem is syncing. You could wait up to 10 minutes for sync).5) Turned off WiFi6) Opened web browser, and Firefox had a nice little 'show login page' button appeared (if this doesn't show, you can go to xfinity.com/activate)7) Entered my account number and street address8) The modem reset itself. I plugged that into my Luma and we were off to the races!Ironically, Comcast sent a new tower modem a week ago. I don't know if it's me, but this seems faster than that did - speed about the same but ping time is now 9ms instead of 14 and pages that seemed to load slowly before pop in immediately. Biggest bonus is that we're saving $11/month going forward.UPDATE: 4/5/18 - Everything was working perfectly until Comcast turned off my service this weekend because the modem wasn't registered in the right database and Comcast thought I had no equipment. Object lesson: After activating online, call Comcast to make sure the equipment has registered across all of their databases - 5 minutes could save you 2 hours! The modem, however, is working flawlessly and I still highly recommend it!

The Netgear CM600 cable modem is an ultimately reliable DOCSIS 3.0 cable modem for service speeds up to 300 Mb/sec or faster. Unlike the company’s CM700 model, it does not incorporate the troublesome Intel Puma 6 chipset found in many higher-end cable midems, making it a more reliable choice.There may be a downside for some, having little to do with the CM600. When accessing the CM600 interface, it is noted that ALL firmware upgrades can only be provided by the ISP (in my case, Spectrum). Whether Spectrum will upgrade said firmware (when and if necessary) is questionable, though it would be to their advantage.It has also been explained that Spectrum cannot remotely troubleshoot issues in “non-standard,” cable modem/routers. These being anything other than the standard free cable modem/routers Spectrum installs as part of their service. They can, however, initiate a reboot and validate that the CM600 is functioning.Funny, this seems more like a positive for me! As a trained network support technician, I like the idea that Spectrum cannot manipulate the settings of either my modem or router; something I am more than capable of doing on my own.Setting up the Netgear CM600 cable modem is as easy to setup as plugging it in and turning it on. The CM600 was fully functional within seconds of connecting the Internet cable to the back.The CM600 is a one-trick pony; it is a cable modem and nothing else. It converts cable data into Internet data. Given the specifications and the high-quality components it does its particularly job incredibly well. The CM600 is built to pull a signal out of a weak or “noisy” line. It will continue to provide Internet service when other lesser modems will drop out. Since purchasing this modem, I have had no random cable dropouts from my ISP. Remember, it has no built-in wireless or wired router. Such a router must be purchased separately.A quick aside: The router is the Grand Central Station of your home’s WiFi universe. It takes a tremendous amount of efficient but fast processing power to send and receive multiple data streams quickly and effectively between a houseful of smartphones, smart HDTVs, computers, tablets, cameras and other WiFi-enabled gizmos and the Internet. A router is a radio transceiver. The more powerful it is, the more information it can send through the air over longer distances. The more sensitive it is, the more it can pick up data being transmitted 500+ feet away. To get the best benefit from your Netgear CM600, I recommend the Netgear Nighthawk® R7000P. Built to handle the needs of the tech enabled home, it is a stellar dual-processor performer at an incredible price.No. I don’t work at Netgear!

I have had this modem for a little over 6 months and it has not been reliable. It was fine for the first three months but then it started loosing connection. I would restart the modem and it would work okay for awhile and start acting up again. All morning it has been working for about 15 mins and then it’s down. I’m glad that I forgot to turn in the modem I had been renting from my ISP. I hooked it up and have not had any trouble. I am so disappointed in this modem. I am normally a Netgear fan but this has been nothing but trouble. I do more streaming than anything and I have work I have to do on my iPad a lot and this is unacceptable.

I was weary of some negative reviews at first, but after reading online reviews from reputable sources, and trying it for myself, this modem is simply amazing!First off, setup was super easy. In a nutshell:1.) Power it up.2.) Connect Ethernet cable from modem to laptop and go to xfinity.com/activate3.) All you need to do is login like you're about to pay a bill and that's it - no account numbers or anything!4.) CALL XFINITY TO ACTIVATE YOUR EQUIPMENT!!! Do not skip this step!5.) Tell them the Serial Number and MAC Address (DOCSIS 3.1, not the DOCSIS 3.0 - look closely on the unit, not on the box, there are (2) MAC addresses, provide the 3.1 number).6.) Connect modem to router via Ethernet (Cat 6 minimum), connect phone line, and you're gucci.Literally all those steps took me less than 15 minutes, including the call to XFinity.I had been wanting to switch to my own modem and start saving $11 per month (plus taxes) for a while, and finally decided to go for it. I hated paying the rental and then I also found out another little detail, you know that free XFinity hotspot thing they keep talking about, ever wonder where that comes from, that's right, your rental modem/router. That sucker is turned on by default and XFinity is using your electricity to power up a public XFinity hotspot. Totally lame, I killed it ASAP in the XFinity My Account application as soon as I realized that. Next thing I did with the rental was turn off the WiFi by switching the unit into Bridge mode. Just some advice for people still renting. I highly recommend switching to bridge and using your own router, it's way better than theirs. Better yet, buy your own modem and route. Ok, rant over, back to review.It is easily two times, if not three times smaller than the rental modem/router unit. Kinda goes as a given since it's one device replacing two. And to that point, it is better to have two discrete devices than two devices in one package for reliability and ease of diagnosis. The device is also very discrete looking and sufficiently aesthetic, at least to me, to be in plain sight. Overall, the build quality, construction, and overall perception does seem to line up with the price tag. I feel like I'm getting my money's worth for the time being. Reliability will ultimately solidify or uproot that.It boots up way quicker than the rental (~1-2 min) and performs better. The latency on my speed tests went down from 12-15 to about 7-9ms aand I'm getting just slightly better downloads but not by much. However, this is one of two of the only XFinity approved DOCSIS 3.1 modems - think up to 10Gbps connection. Now I'm on blast - 250mbps (getting all 250 and then some) but am thinking of going to 1Gbps. And while we're dreaming, this modem will do 2Gbps with link aggregation, but the software update is still in the works. Basically two Ethernet cables from your modem going to your router, each 1Gbps but acting like a "single" cable to provide 2Gbps of total throughput. Way out of the league of most people, but XFinity does have a 2Gbps option over coax so I figured I'd throw it out there.I have only had it for a few days, but was so thrilled with the easy set-up and exceptional performance, I decided to leave a review. I will update ofcourse over the years with reliability and how it holds up, but so far, very promising.

We have Comcast, this modem is supported by Comcast and it’s super easy to set up. It took less than ten minutes. If you have Comcast there are specific instructions to set it up. Very easy.The modem works so far. Our internet speeds are where they are supposed to be.Stop renting your modem and buy it!As for technical stuff I have no idea what any of it is without googling something.I paired it with a LINKSYS EA7300 wireless router and am now enjoying way better connectivity.