R6400v2 Internet light is solid amber

plemans
Guru - Experienced User
May 18, 2020
First try it like this.
1. unplug all the devices from the modem and the router. including coax. I'd even factory reset the router back to stock.
2. reconnect the coax to the arris. turn it on. give it several minutes to fully boot.
3. connect port 1 of arris to wan port on router. don't plug anything into port 2 of the arris (leave it like this, its not usable).
4. power up the router. give it several minutes.
5. attempt setup.

If it doesn't work.
try downgrading the R6400v2 to version 1.0.3.66, factory reset it after it downgrades, and manually install the router. disable autoupdate and try the setup again as outlined above.

Also, check your ethernet cable. it wouldn't be the first time a bad cable caused issues.
- CMT1812
  Aspirant
  May 18, 2020
  I’ve attempted all of the above, but still doesn’t seem to working. The IP address is always coming up 0.0.0.0 btw.
  I understand that there’s obviously an issue between the router and the modem, but is there any other fixes? I feel like I’ve tried everything but it just doesn’t seem to work.
  - plemans
    Guru - Experienced User
    May 19, 2020
    did you try the downgrade?
    have you hardwired into the modem to make sure its working properly?
michaelkenward
Guru - Experienced User
May 19, 2020
CMT1812 wrote:
Sorry and the modem is the one provided by nbn in Australia. Arris CM8200

Does this get a good internet connection without the router in the picture?
- CMT1812
  Aspirant
  May 19, 2020
  It gets a reasonable connection using the router the ISP provided. But I have bought the Netgear router as an upgrade.
  - antinode
    Guru
    May 19, 2020
    > [...] The IP address is always coming up 0.0.0.0 btw.
    
       Which "The IP address"? The IP address of the WAN/Internet interface
    on the R6400v2? (ADVANCED > ADVANCED Home : Internet Port : Internet IP
    Address?) In this context, "0.0.0.0" simply means "none".
    
    > [...] I understand that there's obviously an issue between the router
    > and the modem, [...]
    
       More between the R6400v2 and your ISP (_through_ the modem).
    
    > [...] the modem is the one provided by nbn in Australia. Arris CM8200
    
       Should be harmless.
    
    > [...] when I plug the router in that was given from ISP, the internet
    > works [...]
    
       Has that "the router" a maker and model number? Have you looked at
    its configuration? Does it use any potentially unusual features like,
    say, PPPoE?
    
    > [...] I have tried MAC spoofing, [...]
    
       Not much meat on that bone. Whose MAC address did you assign to
    what, exactly?

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R6400v2 Internet light is solid amber