Good afternoon and thank you for stopping by! I just recently switched from cable to fiber internet. My RAX80 — Nighthawk AX8 is the same router used for both connections. The internet was operational when using the cable internet provider. Currently, there is confirmed internet at the point of the ONT (optical network terminal just in case). The ONT is connected to my RAX80 by ethernet. The RAX80 is not connecting to the internet. I already checked to see if it was a DNS issue, but confirmed its not. What could be preventing the router from resolving an IP from the ONT? Everything on nighthawks support pages say it should all work seamless / automatically. I appreciate any insight! Kevin

PCs may work with out a power cycle, however between a ONT and router, the ONT or modem can configure to the MAC address of the prior connected device. When connecting up a new device like a router, the prior MAC address maybe still configured and would need to be cleared to give way for the new MAC address, so a power cycle will effect this.

If you can test it at a different location, would be telling. Anything could have happened in between last connection and new connection with ONT. We still know know what the brand and model # is of this ONT that was installed.

What Firmware version is currently loaded?What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too? Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended. Check with the ISP to see if there is any Specific configurations needed between the ONT and router. Some may required a PPPoE configuration. Most only required DHCP on the WAN side. Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?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. Wait 2 minutes for it to connect.Turn on the router and wait 2 minutes for it to connect.Turn on computers and rest of network.

Check with the ISP to see if there is any Specific configurations needed between the ONT and router. Some may required a PPPoE configuration. Most only required DHCP on the WAN side.This is a little above my paygrade. I'll research and see if I can figure this part out.Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?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. Wait 2 minutes for it to connect.Turn on the router and wait 2 minutes for it to connect.Turn on computers and rest of network.I havent turned the ONT off only becuase the tech plugged his computer directly into the ONT with a cat6 cable and was reading good internet.The cable going from the ONT to my router is a cat6I will perform this sequence you suggested and report backI appreciate the help!

I performed the powercycle as listed. No change in behavior. I'll add to the original post that the tech said (after connecting to the router via ip address and admin / log in) that the "DNS" was set to my original provider (charter) and he had to set it to google. The internet indicator light flashses amber (or red, im kinda colorblind) and every now and then will flash white for a second and then back to amber. I did make sure that the firmware for router was updated. I also took screen shots of the router's information and internet port if thats helpful.

RAX80 Connection to Fiber | NETGEAR Communities

22 Replies

FURRYe38
Guru - Experienced User
May 17, 2023
What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.

Check with the ISP to see if there is any Specific configurations needed between the ONT and router. Some may required a PPPoE configuration. Most only required DHCP on the WAN side.

Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?
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. Wait 2 minutes for it to connect.
Turn on the router and wait 2 minutes for it to connect.
Turn on computers and rest of network.
- Kpoe2000
  Aspirant
  May 17, 2023
  Check with the ISP to see if there is any Specific configurations needed between the ONT and router. Some may required a PPPoE configuration. Most only required DHCP on the WAN side.
  This is a little above my paygrade. I'll research and see if I can figure this part out.
  Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?
  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. Wait 2 minutes for it to connect.
  Turn on the router and wait 2 minutes for it to connect.
  Turn on computers and rest of network.
  I havent turned the ONT off only becuase the tech plugged his computer directly into the ONT with a cat6 cable and was reading good internet.
  The cable going from the ONT to my router is a cat6
  I will perform this sequence you suggested and report back
  I appreciate the help!
  - FURRYe38
    Guru - Experienced User
    May 17, 2023
    PCs may work with out a power cycle, however between a ONT and router, the ONT or modem can configure to the MAC address of the prior connected device. When connecting up a new device like a router, the prior MAC address maybe still configured and would need to be cleared to give way for the new MAC address, so a power cycle will effect this.
michaelkenward
Guru - Experienced User
May 17, 2023
Kpoe2000 wrote:

My RAX80 — Nighthawk AX8 is the same router used for both connections. The internet was operational when using the cable internet provider.

I see no mention in this conversation of a "reset" of your RAX80.

You need to get it to forget any settings it inherited from your cable network.

How do I perform a factory reset on my NETGEAR router? | Answer | NETGEAR Support

Maybe you did this, but, as I say, I can't see any mention of this. It is the first thing to do whenever you change the Internet service, before all of the other recommended sensible measures.

An alternative is to use the browser graphical user interface (GUI) to go into the router and take it through its Internet Setup Wizard.
- Kpoe2000
  Aspirant
  May 17, 2023
  Correct sir, I have only "rebooted" it through the phone app and did a manual power cycle.
  
  I plan on going home and logging in with the admin / pw info. I'm assuming the internet setup wizard is somewhere inside that GUI after logging in?
  - michaelkenward
    Guru - Experienced User
    May 17, 2023
    Kpoe2000 wrote:
    
    Correct sir, I have only "rebooted" it through the phone app and did a manual power cycle.
    
    Aha. That could be the issue.
    
    I plan on going home and logging in with the admin / pw info. I'm assuming the internet setup wizard is somewhere inside that GUI after logging in?
    
    Advanced
    
    Advanced Home
    
    Setup Wizard
    
    Netgear has steadily improved this over the years. The wizard plays nicely with most ISPs, although it can get confused by exotic networks.

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RAX80 Connection to Fiber