I upgraded my Comcast/Xfinity Internet service to Extreme Pro Internet with download speeds of 400 Mbps. This upgrade requires a DOCSIS 3.1 modem. I purchased a CM1150V as my DOCSIS 3.1 device, and actually tested at 490 Mbps download speeds. Now I would like to use the C6300 (DOCSIS 3.0) as a WiFi router fed from the CM1150V. Is this possible? If so, is there a step-by-step instruction?

I read the message where it won't work as a router only. Aw-shucks! Purchased a new Netgear WiFi router.

How to turn the C6300 into a Wireless Gateway

andrew_d
Aspirant
Jul 01, 2019
I read the message where it won't work as a router only. Aw-shucks! Purchased a new Netgear WiFi router.
FURRYe38
Guru - Experienced User
Jul 01, 2019
Any C series modem is already a modem/router combo. They can only work in this mode or Modem Only mode. Not router mode.
You could keep the CM which are modem only units, then attached a external NetGear router it it.

Good Luck.
- antinode
  Guru
  Jul 01, 2019
  > Any C series modem is already a modem/router combo. [...]
  
     So it's a C-series modem+router, not "a C series modem".
  
  > [...] They can only work in this mode or Modem Only mode. Not router
  > mode.
  
     It's not what you asked for, but you should also be able to use it as
  a wireless access point. See, for example:
  
        https://community.netgear.com/t5/x/x/m-p/1463500
  
     But, with no (accessible) WAN/Internet Ethernet port, there's no
  obvious way to connect it as a router.
  
  > My Setup [...]
  
     Helpful as ever.
- andrew_d
  Aspirant
  Jul 01, 2019
  The C6300 is only good as a paperweight to me. It is DOCSIS 3.0.
  - FURRYe38
    Guru - Experienced User
    Jul 01, 2019
    FInd a place to sell the C series modem/router. Someone may find it handy for them.
    
    Enjoy.
    andrew_d wrote:
    The C6300 is only good as a paperweight to me. It is DOCSIS 3.0.