which modems that are supported by COMCAST?
1992042
If you call them they will happily tell you which modems you can purchase that are compatible with their system. Also, be careful if you buy a second hand modem online, they are often equipment that belongs to the cable company (Comcast, Cox, Time Warner) but were never returned (by deadbeat customer who left unpaid bills and pawned the equipment), they have a record of those serial numbers and they cannot be used for another account.
1156085
It works with any ISP whose modem has an RJ45 LAN port. Most new modems have built in routers however, so you have to contact Comcast about either bridging the router to the Ubiquiti or disable the router features of the Ubiquiti and use it as a wireless access point.
858987
Yes, this device is compatible with ALL of Comcast's Internet Tiers (currently up to Extreme 150). You can verify this by visiting Comcast's supported modem site here: http://mydeviceinfo.comcast.net/Please note that this device is capable of working with any major ISP as it is DOCSIS 3.0 Certified. Simply contact your ISP to verify that the model is supported.
867144
I have a Motorola, XBOX, and a DVD player hooked up to one. I assume comcast will work fine.
1530910
I don't know about comcast. I am with TWC, Cg3000d is not in their list as well, only CG3000Dv2. However, I can use Cg3000d to get online with TWC, in Chapel Hill. I think CG3000Dv2 is second version of Cg3000d, but still works very well for my case. May be some comcast users can give you a confirm answer.
2086855
If you have high speed internet and phone through Comcast, then this type of modem router (DOCSIS 3.0 with wireless N and phone jack) could be what you're looking for. The brand though, it depends on if Comcast supports Ubee. Some areas I've heard they do, you should double check on their website.
1165864
I don't know. I'm guessing you can check with them? That's how I knew it was Comcast compatible.
1487412
I purchased this product because Time-Warner, my cable and Internet provider recommended it. I do not know if it is compatible with Comcast but you should be able to go onto their web site to find out. Yes, it is both a modem and router and was easy to install and has worked beautifully for me, a non-tekkie.
383288
Hello Cheryl S. Yes, the R20000G is compatible with modems that are provided from Xfinity/Comcast.
1667766
this is NOT a cable compatible modem. This modem is for DSL connection use only. You need to continue to search for a Cable Compatible modem... it should have a spot in the back for you to screw in your com cast cable line. Possibly refer to Comcast customer support for an updated list of compatible modems. I'd hate to spend the money and it doesn't do what you need.
749583
I am using this modem since last August. It is working very well with comcast (xfinity) internet service.
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.
764050
This modem is for DSL subscribers (and even then AT&T; told me they cannot supported). Cable internet subscribers must get a cable-supported modem.
969934
They both support docsis 3.0 so I don't think there are any kind of differences between the two.In fact the modem was exactly the same as the one Comcast were providing last year and I had to give them the serial number so that they know this is not a rental.
1548708
No. This particular modem is for HSI data only - as noted in the description. I believe the Ubee DVM3203B is used for telephony, but see the following Comcast/xfinity URLs for supported devices and their approved uses: http://mydeviceinfo.comcast.net/ http://customer.comcast.com/help-and-support/internet/list-of-approved-cable-modems/
914067
I bought the Arris TM802G from Amazon because Comcast said I had to have a Doc Sis 3.0 telephony modem. Comcast said they weren't able to support this modem. I told Comcast that I was using it just for phone and cable and they were able to install it over the phone. It should work for Internet as well.
841034
I highly doubt it. This is for DSL service, which Comcast does not provide. Look for a DOCSIS 3 modem.