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Aspirant

connect to caomcast ( xfinity) modem

I just install Nighthawk R8000 to Xfinity modem.

- work for couple hours,

- still have 2,4G from  comcast

- R8000 give me one 5Ghz band

Install nighthawk app and stuck at login to 2.4Ghz

Then nothing connect to internet.

Unplug the R8000 and everything back to normal ( without Nighthawk R8000)

Please help to install the router, anyone who is succesfull connect to xfinity modem, your help greatly appreciate.

Any good procedure

Thanks

Model: R8000|Nighthawk X6 AC3200 Smart WIFI Router
Message 1 of 7

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Master

Re: connect to comcast ( xfinity) modem

your Netgear "modem" is not a modem but a router. Your ISP provided device is a modem/router combo. Connecting these two together without setting your ISP modem/router into bridge mode creates a double NAT which you should avoid

 

The firmware version of the R8000 can be found either in the app or the Web GUI at http://192.168.1.1

Your ISP modem/router most likely has a label on it with the device model

Routing: NETGEAR R7800 - Voxel Firmware 1.0.2.79SF
Switching: 2x NETGEAR 8-ports (GS108v4) / 1x NETGEAR 16-ports (JGS516v2)
Desktop: AMD Ryzen 7 3700X - Server: Intel Core i7-7700K - NAS: Intel Pentium G4400

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Message 4 of 7

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Highlighted
Master

Re: connect to caomcast ( xfinity) modem

You're running 2 routers and creating a double NAT. Set your ISP modem/router to bridge mode if possible and use the R8000 as the router. Also, it would be useful to know the ISP modem model and firmware version on the R8000

Routing: NETGEAR R7800 - Voxel Firmware 1.0.2.79SF
Switching: 2x NETGEAR 8-ports (GS108v4) / 1x NETGEAR 16-ports (JGS516v2)
Desktop: AMD Ryzen 7 3700X - Server: Intel Core i7-7700K - NAS: Intel Pentium G4400
Message 2 of 7
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Aspirant

Re: connect to comcast ( xfinity) modem

Thanks for your respond,

I need of a procedure of how to setup, 

When I set up, it just went very fast and smooth untill I see only one band which is 5Ghz, 

I then down load the nighthawk app then I was be able to see other 2 bands

But then I would lost the internet connection, so I unplug the ethernet cable from the comcast modem and go back to the original setup of comcast, which is their modem/router.

I don't know where to get the info of firmware, my netgear modem is R8000, ac3200 X6

 

Thanks

 

 

 

Message 3 of 7
Highlighted
Master

Re: connect to comcast ( xfinity) modem

your Netgear "modem" is not a modem but a router. Your ISP provided device is a modem/router combo. Connecting these two together without setting your ISP modem/router into bridge mode creates a double NAT which you should avoid

 

The firmware version of the R8000 can be found either in the app or the Web GUI at http://192.168.1.1

Your ISP modem/router most likely has a label on it with the device model

Routing: NETGEAR R7800 - Voxel Firmware 1.0.2.79SF
Switching: 2x NETGEAR 8-ports (GS108v4) / 1x NETGEAR 16-ports (JGS516v2)
Desktop: AMD Ryzen 7 3700X - Server: Intel Core i7-7700K - NAS: Intel Pentium G4400

View solution in original post

Message 4 of 7
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Aspirant

Re: connect to comcast ( xfinity) modem

I am having hard time to re-connect to http://192.168.0.1 or http://192.168.1.1

Now I understand the double NAT, I will looking for how to disable the ISP Modem/router then re-connect my NETGEAR R8000 to and set up again

Another question, now when you disable the 'bridge' from comcast modem/router.. can I switch back if the NETGEAR router set up do not go through?

 

Thank you

 

Message 5 of 7
Master

Re: connect to comcast ( xfinity) modem

You should be able to switch back the mode on your ISP modem/router

 

NETGEAR firmware automatically sets 10.0.0.1 as LAN address if it detects another router is connected to your network, like the ISP device you have. You may try login to http://10.0.0.1

Routing: NETGEAR R7800 - Voxel Firmware 1.0.2.79SF
Switching: 2x NETGEAR 8-ports (GS108v4) / 1x NETGEAR 16-ports (JGS516v2)
Desktop: AMD Ryzen 7 3700X - Server: Intel Core i7-7700K - NAS: Intel Pentium G4400
Message 6 of 7
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Aspirant

Re: connect to comcast ( xfinity) modem

Thank you so much Microchip8,

I will try again, but this time I  will disable the comcast modem/router's 'bridge' before reinstall the netgear R8000.

I will let you  know how it goes.

Have a happy holliday!

 

 

Message 7 of 7