Is this compatible with Comcast? Do I need to buy a cable modem, too?
1873885
The R20000G will need to be connected to a modem provided from your ISP (Internet Service Provider).
157208
I use it with Comcast and have no issues, I can't speak to its compatibility with a wireless modem.
799052
Yes it is, but make sure your ISP supports that model because Comcast decided they dont. So I had to return it because of that.
272436
I do not know if it is compatible with Comcast. It is a modem-router in one unit. I do want to add that it quit working after about 2 months and we ended up purchasing the recommended device from AT&T.;
1855012
It works fine with Comcast, however make sure that you check the firmware of the modem after installation. If its less than 2010, then you will have to contact your internet provider to get it upgraded. This can only be upgraded by the internet provider.
2134362
Since you're using your own modem. There would be no fee from the cable company to rent one. The modem works just fine on Comcasts network. The cable company will probably try to talk you into getting a newer modem for reasons they don't understand themselves. Don't buy into their BS
2225696
Your ISP only needs the MAC address of the modem. Comcast also asked for the Manufacturer, Model No. and Serial No. I believe they just want to make sure it is compatible and if there is any issues what specific unit is giving problems. This unit has worked flawlessly on the Comcast network.
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.
314553
Unfortunately no. Still needs a wireless router attached. Either way, it didn't work in our home with Comcast, so don't buy if that's your provider.
199437
ONLY if this specific model is listed on Comcast's Approved Modem List. From what I have read, they have changed their hardware and support networks to specifically exclude "non-approved" modems. Their tech support people may pass you around but their hands are tied.
1757307
I don't have Comcast but it may be wired universally so it should work no guarantees but it won't hurt to try it with your modem
1530908
No it's not. This was a model sold wholesale to Time Warner Cable and while it might sorta work on Comcast, it's not compatible with their "Blast!" service so you'd top out at able 6 Mbs I got this a few weeks ago to use with Comcast and it was a disaster. Ended up with a Netgear N600 instead.
945542
Yes, I'm using mine on Comcast and it works great (also saving the rental fee!)
1165865
I have no idea - I just hooked it up with the Cat line and cable line and it works - it is Comcast Compatible
272442
If Comcast uses cable signal (with a coax connection), then no. This is for DSL; so it needs a landline-type connection - though you don't usually need a landline account. We used it with AT&T; dsl. And yes, it is a modem and router all in one. Takes in the signal and pushes it out too. :-)
1617692
The one that I had purchased did not work with Comcast for me. I was on the phone with them for well over an hour & the bottom line in my application it was a NO GO. It did not work & I bought another brand & it was golden. I bought this brand/model... Arris Tm722g Cable Modem Docsis 3.0However & do not believe & spent that much...
1097639
I am sorry I cannot help you with this. When we decided to purchase our modem, we bought the same kind that we rented from our cable internet provider. We knew for certain that it would work.