I am being told by Comcast that I need to purchase a new model. I currently have a Surfboard 6121 connected to a Netgear Everywhere router running thru an Ooma phone. All of this is connected to 5 Replays thru the XE104's. My obvious question has to do with which modem will work with this setup. I'm sure there are more questions and I will do my best to provide answers. PLEASE HELP.

> I am being told by Comcast that I need to purchase a new model. Did anyone say why?> I currently have a Surfboard 6121 [...] That seems to be a DOCSIS 3.0 modem, not obviously obsolete.> [...] connected to a Netgear Everywhere router [...] An actual model number might be more helpful.> My obvious question has to do with which modem will work with this> setup. I'd expect any (DOCSIS 3.0 or newer) modem to work, but I don't knowwhat the problem might be with the old one. Presumably, Comcast cantell you what the actual requirements are.

According to Comcast they are "upgrading" to a higher speed....I agree it makes no sense.

> According to Comcast they are "upgrading" to a higher speed....I agree> it makes no sense. "higher" than what?> BTW the above model is listed Which "the above model" is listed where? You need to get a coherent description of what you need to have, andwhy what you have is defficient, before you will know what hardware you(might) need to get. Not being Comcast, I can't help with that.

Comcast is trying to get their customers off old 4x4 modems. they want you to change to newer 16x4, 24x8, 32x8 or D3.1 modems.

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12 Replies

antinode
Guru
Nov 25, 2017
> I am being told by Comcast that I need to purchase a new model.

   Did anyone say why?

> I currently have a Surfboard 6121 [...]

   That seems to be a DOCSIS 3.0 modem, not obviously obsolete.

> [...] connected to a Netgear Everywhere router [...]

   An actual model number might be more helpful.

> My obvious question has to do with which modem will work with this
> setup.

   I'd expect any (DOCSIS 3.0 or newer) modem to work, but I don't know
what the problem might be with the old one. Presumably, Comcast can
tell you what the actual requirements are.
- shar2649
  Aspirant
  Nov 25, 2017
  According to Comcast they are "upgrading" to a higher speed....I agree it makes no sense.
  - shar2649
    Aspirant
    Nov 25, 2017
    BTW the above model is listed
vkdelta
NETGEAR Employee Retired
Nov 27, 2017
Comcast is trying to get their customers off old 4x4 modems.
they want you to change to newer 16x4, 24x8, 32x8 or D3.1 modems.
- shar2649
  Aspirant
  Nov 27, 2017
  Could you please explain that those mean...
  16x4, 24x8, 32x8 or D3.1 modems. And I guess also which of the suggested modems would work?
  - vkdelta
    NETGEAR Employee Retired
    Nov 27, 2017
    16, 24, 32, etc are number of downstream channels
    
    4, 8, etc as number of upstream channels

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This old woman needs help