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Upon setup router says it can not detect cables.

Aosbornefl
Tutor

Upon setup router says it can not detect cables.

I just recently moved and have a new internet service. I have factory reset the router, upon setting up the router again when it goes through the steps it says it can not detect cables, I click the question mark at the top right of the Netgear app and it says to make sure Ethernet cable is connected on both ends. I’m using a brand new Ethernet cable, I’ve tried an old one, I’ve reset the modem and the router and I still can’t get it to work.
Model: R7450|Nighthawk AC2600 Smart WiFi Router
Message 1 of 8
plemans
Guru

Re: Upon setup router says it can not detect cables.

What modem/gateway is it?

Message 2 of 8
Aosbornefl
Tutor

Re: Upon setup router says it can not detect cables.

The modem is Model# TC8717T. I don’t know what you mean by gateway, the provider I use is spectrum internet.
Message 3 of 8
plemans
Guru

Re: Upon setup router says it can not detect cables.

the  TC8717T is a modem/router combo device. its not strictly a modem. 

Unless you have it in passthrough/modem only mode (not all device implement properly) it can put you in a double nat. 

https://kb.netgear.com/30186/What-is-Double-NAT

 

options?

1. put the TC8717T in modem only/pass through mode

2. put the netgear's ip address in the TC8717t's dmz

3. put the netgear in access point mode. 

 

just use one of those modes.

Message 4 of 8
Aosbornefl
Tutor

Re: Upon setup router says it can not detect cables.

How do I put my Netgear in access point mode?
Message 5 of 8
plemans
Guru

Re: Upon setup router says it can not detect cables.

Message 6 of 8
Aosbornefl
Tutor

Re: Upon setup router says it can not detect cables.

Thank you. But how do I get to this point if it doesn’t fully let me setup the router? Everytime I’m in the process of setting it up it can’t detect the cables, I close the app and reopen and it makes me start the process over again. Do I just need to set my modem to pass through mode?
Message 7 of 8

Re: Upon setup router says it can not detect cables.


@Aosbornefl wrote:
Do I just need to set my modem to pass through mode?

That would be the best option. If you put the R7450 into AP mode you lose a lot:

 

Disabled Features on the Router when set to AP Mode | Answer | NETGEAR Support

 


@Aosbornefl wrote:
But how do I get to this point if it doesn’t fully let me setup the router?


Try this:

  • Unplug PC from network
  • Plug R7450 into PC
  • Set up R7450 in AP mode
  • Unplug R7450 from
  • Plug in PC
  • Plug R7450 into the modem/router

 

Be sure to restart your network in this sequence:

  • Turn off and unplug modem.
  • Turn off router and computers.
  • Plug in and turn on modem/router. Wait 2 minutes for it to connect.
  • Turn on R7450 and wait 2 minutes for it connect.
  • Turn on computers and rest of network.

 

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