worked as intended

Did not work as required

Was charged shipping to return

This product worked fine for about 3 months. I have had it for four months and now I can be sure that I will have to reset the modem at least once a day. It does not maintain internet connection. Huge hassle. I may try Netgear tech support, or maybe I will just toss it and buy a different brand modem, because I am not sure that it is worth my time to waste on the phone. I will probably try a factory reset, update the firmware, whatever else the internet search gurus have to offer and if that doesn't do it, toss it. Frankly, I expect a modem to work all the time for years with no issues. I had similar modem issues with a previous internet provider and when they would send a technician he would basically carry a new modem into the house before he even looked at the line. Modems are apparently throw away items that fail often. I purchased this thinking that it was a good brand and a mid-range price, therefore good quality. I would be willing to pay a bit more money for an item that would last. Very disappointed.2016-12-19 update.This thing has been a constant hassle. I am not absolutely sure that the modem is the issue, but there is only a Netgear N900 behind it and Time Warner cable in front of it. The modem is just constantly on the fritz. I will look up and see orange lights. It seems to reset itself throughout the day. "It works" is about the best that I can say about it. If you have any other option, take it. I have had enough and will be purchasing another cable modem. Life is too short to put up with this piece of crap.BTW if it turns out, after I buy another cable modem, that it was not actually the modem that was causing all of the headaches, then I will revise this review.

If you are looking to ditch the monthly charge of renting a modem from your ISP, or simply to get higher performance, this Netgear modem is currently the best option out there. I'm a software engineer, gamer, and consume all my video content through the web...so I live through the internet.Why this Netgear modem?A few months ago I picked up an Arris SURFboard SBG6580 DOCSIS 3.0 Cable Modem/ Wi-Fi N Router, after previously having success with Arris modems. I liked the idea of an all in one combo, and since the SBG6580 was dual-band I figured it should work great. It didn't. The short version of the story is I spent the next 6 weeks with terrible internet issues, which I thought was mostly Comcast's fault (after previous experiences)...disconnects, download speeds of around 1Mbps, upload speeds of .5Mbps (despite paying for 50Mbps down and 5Mbps up)...and then it would work perfectly for 3 minutes. Super frustrating. After extensive research it appears the SBG6580 wireless was the issue (extreme unreliability).I moved and decided to start over again building my network. After a bunch of research I ditched the Arris and picked up this Netgear modem. It had great reviews, was a bit future-proofed (16 download channels!!), and came in at a reasonable price. Setup was amazingly easy. As a Comcast customer I didn't even need to call in to activate the modem (thank cosmos!); it was all done through a web interface. I paired this modem with a TP-LINK Archer C5 AC1200 Dual Band Wireless, and the performance is outstanding! I currently pay for 50Mbps down and 5Mbps up, and what I'm actually getting with this new setup is around 90Mbps down, and 10Mbps up...way over what I actually pay for! Additionally, in 3 weeks of use I haven't had to reset my modem once, have had 0 disconnects, and generally an amazing experience.Want speed and reliability? Buy this modem! GLHF!

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Love this, easy set up, faster internet and internet TV than what TWC was sending, set up separate router too, also easy. say goodbye to ISP modem/router combo monthly rental expense, which slowed down everything. This will pay for itself in 6 months by not having to pay monthly modem rental fees. There is no plug in phone adapter if you still have a landline but I fixed that issue by buying Magic Jack Go for $40, which came with a cell charger as added value and 12 months of free service, then only $35 a year for service after that plus its internet friendly, even ported my own number. also simple set up and I'm a 66 year old grandma so if I can do it, anyone can. I can now drop cable and all there exorbitant charges and little unknown surcharges, and nasty CS reps, though you do need Internet for all your other devices, but so long cable TV and phone. I'm saving about $1400 a year by switching to Netgear, my linksys router, Magic Jack Go for phone service and using just internet TV like HULU, Amazon Prime, and Sling TV. Oh, and I just got Amazon Fire TV with voice remote for $25, the whole shebang. If you scroll down on Amazons Fire TV page, there's an ad for Sling TV (which hosts many cable networks). When you click on deal, you get $50 off Amazon Fire TV when you buy 3 months of Sling which is $60 so it's a wash. After 3 months, you do not have to keep Sling if you don't like it and you still have your Fire TV for $25. From what I've researched so far, sling has the best offering of Cable Networks while Hulu Plus has most current Network TV shows pretty much the same day. Hulu is only $8 a month but they just started a new offer for $12 a month for commercial free shows. Plenty of binge watching available too. So to be clear, with all these new one time expenses, plus the new monthly expenses, for phone, internet and TV, I'll now be paying about $80 a month vs $200 a month and will end up with many more options than TWC could ever offer. My only regret, that I hadn't done all this sooner as I've had a Sony Internet TV for 5 years and just got around to all these changes this week. Woulda, coulda, shoulda saved thousands of dollars over that time had I not allowed fear of the unknown to get in my way. Turns out though time consuming, it was so easy to do and set up. I have about 9 devices going through my modem and router and it doesn't slow anything down at all. My Netgear, in fact, has improved my speed, plus more. All my devices were so slow on the TWC combo modem/router (and I was paying for 50mb). Now that I've cut the cord, and got the Netgear, everything is super fast. I love it and wish I had done this sooner. Worth all the time, effort and cost for all of it.

I received an email from my ISP (Cox) stating they'd upgraded my connection from 150mbps to 200mbps. As a heavy internet user (average of around 2,000GB transfer per month), I was pretty excited. In order to make use of these speeds, though, I needed a new modem. My current one was already DOCSIS 3.0, but with only 4/4 downstreams/upstreams. I decided to purchase this unit as my solution, as it has 16 channels down.Using identical speedtest servers, I compared the old modem and new modem. I observed that pings and upload speeds did not really change, as expected. The download speeds definitely saw an increase going from about 107mbps on the old modem, to 177mbps on the new modem. Definitely substantial.For those without much experience with network transfer speeds, "mbps" stands for megabits per second. This is the measurement used in speedtests and advertised by ISPs. Your browser measures download speeds in bytes, you'll see things like MB/s (megabytes per second). They are different, but related, measurements, so be careful not to mix them up. There are 8 bits in a byte, so to compare the two, you'll either have to multiply your BYTES measurement by 8, or divide your BITS measurement by 8. In this case, 177mbps (megabits per second) translates to 22.125 MB/s (megabytes per second).I have indeed managed to download certain files at 20MB/s after this upgrade, but you'll often be limited by the server which you're connected to rather than your download speed when it comes to things like http (your typical web) downloads.--- The rest of this review below is preserved for the sake of history, but no longer relevant. See the EDIT at the end for more details ---Now, here's where the big con comes in...It seems that this modem is not properly cooled. Regardless of the speedtest server, or speedtest type/provider, it appears that this modem begins throttling after sustained high speeds. Speedtest, for example, and with a good local server, will hit a peak of 195mbps pretty consistently, but after the test has been running for a while, it'll begin dropping about 3mbps every second. This is how I end up with 177mbps instead of sustaining the 195mbps. I've checked the Cox Cable's policies and they state that they do not shape or throttle their connections, so I'm fairly certain this is a heat issue with the modem, and it's resultant throttling or performance degradation due to the heat.I have not contacted Netgear yet, but may do so in the case that I received a faulty unit. If that turns out to be the case, I will update this review accordingly.EDIT: Netgear responded in a comment below, and I got in contact with them over email. One of their recommendations was to contact my ISP to ensure everything was set up correctly and I initially brushed it off, figuring it was all fine, but still called to hold up my part of the deal. It turns out that Cox Communications had forgotten to update my internet package code in their system when they did automatic network speed updates, so I was running off of the previous 150mbps plan with BOOSTS up to 200mbps. The following slow drop in performance was the boost slowly going down to the normal 150mbps speed.Once Cox updated the codes, everything run much more quickly and even though my speeds are rated for 200mbps, I'm seeing 300-350mbps download and 30-40mbps upload. Much, much better.I can confidently say this was a great upgrade now!