Hello, comcast said that to get the speed we are paying for needs a 2 way docsis 3 modem. Is this a 2 way? We currently have 1 way.
1337400
They were probably telling you that you need a two-channel modem. Bonding of channels multiplies your speed by the number of channels, and it's a core feature of DOCSIS 3 as compared to DOCSIS 2, which only has a single channel at a time. That doesn't answer the question of which channels are supported, though. Not all modems/ISPs support the same set of channels, and you have to support a channel to bond it. I recommend that you ask your ISP specifically if this modem is supported.
1337401
Yes, the DOCSIS 3.0 is way faster for uploading and downloading and will blow your 1 way out of the water. 8 channel downstream and 4 channel upstreaming. This is why i had to upgrade my modem, cause my internet service was better than my modem. http://goo.gl/O9OJQH
1337402
Ummm sounds like technogibberish to me . all cable modems are 2-way. They have to be. Now the question is does it meet the docs is 3.0 standard? Yes it does. You will be able to Get &gt;300mbps down and ~120mbps up.
1337403
I wonder if they might be meaning two tuners. I'd expect a fairly small improvement with two tuners with 8x4, but this device does have two tuners.
1337404
not all cable modems are 2way there exist 1way cable modems that use upload on a phone line and download on a coax cable and similar systems. this is an older technology, and not all cable modems that are DOCSIS 3.0 do DOCSIS 3.0 two way. some do DOCSIS 3.0 down and 2.0 up and vise versa. this modem listed is 2way and my comment was to just be a little more accurate on the other facts.
1337405
Ummm sounds like technogibberish to me . all cable modems are 2-way. They have to be. Now the question is does it meet the docs is 3.0 standard? Yes it does. You will be able to Get >300mbps down and ~120mbps up.
1748204
Comcast is not a big fan of when you have your modem. Yes, it was compatible, but Comcast after a few weeks stopped working and wanted to charge for technical service help. My advice... run while you still can (from Comcast, that is).
1463311
In my configuration I'm running from a high speed cable modem to a 10/100 Mbps switch then to the ChannelMaster unit. But you pose an interesting question. I know that you can run Gigabit Ethernet over Coax. I do have a Gigabit switch that I can swap out for the 10/100. I will do that and see what speeds I end up with.
1341530
The modem definitely supports 25Mbps Internet plans, because it is rated up to 38Mbps. You should contact Comcast to verify. It IS listed on their supported modem page as Certified.
972556
That I don't know. The reason I went with this one is because this is the exact modem that Comcast uses and I wanted to minimize any transfer problems. the modem I had before this was Aria which Comcast also uses. If you go with one of the other modems, just make sure it is supported by Comcast before purchasing because not all modems are and I didn't feel like doing the research. (also just bec an item is more expensive doesn't mean it's better. however keep in mind that this is a modem only and NOT a modem and router in one). -Take Care.
1288450
This is a DOCIS 2.0 modem, it is rated for a max. download speed of 38Mbit/s and upload speed of 27Mbit/s. Your service provider may limit you to slower speed. If you want higher speed, you need to get a DOCIS 3.0 modem.
940961
It's a gateway. Big difference. Meaning it can do whatever you want it to. I'm asking them for a firmware upgrade so that I can bypass Time Warner for the phone provisioning. Time Warner is dragging their feet because they don't know how I got it to work. If you have Comcast then none of that matters.
841034
I highly doubt it. This is for DSL service, which Comcast does not provide. Look for a DOCSIS 3 modem.
691437
Hey! Sorry I'm away, could answer by afternoon on 11/8 with unit in hand, but I bet it is FCC. Usually quicker and certain with answers like this so please give a yell anytime to talk shop. Richard.cameron@comcast.net
988854
Doesn't look like it would be as fast as docsis 3.0. Also I am not sure that a Broadband ADSL2 + Modem 2.0 is a cable modem for a true apple to apple comparison.
1026784
You commented that you were using comcast basic package, which is probably analog. We have Insight in our area and they have a separate digital package, called digital 3.2, which sends a digital signal that would be far superior. You can purchase HD packages within that set-up.
236693
Like Ian, I, too, have Time Warner, but I will pass on my experience because it might help. I called TW and they actually gave me a list of compatible modems before I bought anything, and this one was one of them. But when I purchased it and the tech came to install it, I was told that TW doesn't allow customers with digital phone to have their own modem. So who do you believe--the customer service rep or the installer? Anyway, the modem is sitting in my supply closet, never used. And I can't imagine any cable company with worse customer service than TW. :)
1165868
It is 100% compatible with COMCAST, VOIP, internet and TV - crystal clear phone. DOCSIS 3.0. I have never seen anything install so rapidly and fully like real bread and butter. Unless COX is from the MOON and totally different than COMCAST cable ... I think you should experience the same satisfaction. The big trouble is finding this modem available anywhere. The full install and firmware upgrade took a full twenty minutes with COMCAST ... all automatic ... one mouse click.
948878
It depends on the speed you pay for through your isp/cable company. If you pay for 15/1 that's what you'll get. This isn't a magic speed booster. If you pay for 3/1 you'll still only get 3/1. The cable company CMTS provisions the modem for the speed on your account when you call to have them add the modem to your account.Source: I worked for techops at time Warner cable
1982275
As a DOCSIS 2.0 modem it will work with Comcast, but if you paid for speeds above 25Mbps you should go for a modem that supports DOCSIS 3.0 as this modem will only go up to about 25-30.
597357
I'm dealing with this now. I called Comcast, gave them the MAC and serial numbers, and they said this modem is not compatible. Their list of compatible cable modems at http://mydeviceinfo.comcast.net shows the NetGear CG3000DCR and CG3000Dv2. So now I am trying to upgrade this CG3000D to CG3000Dv2, but it does not look good. Waiting for NetGear tech support chat as I write... I might need to return this cable modem, and order one on the list. More later... NetGear's answer: No. See http://kb.netgear.com/app/answers/detail/a_id/24324 DO NOT BUY IF YOU ARE A COMCAST CUSTOMER.
481323
NO.. Actually I sent this modem back. I did replace it, however, with a "TELEPHONY" modem that is just like the one I was renting from Comcast. I didn't realize my error in reviewing this item until after I hit ENTER. sorry