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Forum Discussion
GaryLC
May 30, 2021Aspirant
RAX45 "The IP address conflicts with the WAN IP subnet. Please enter a different IP address."
I am trying to add a Netgear Nighthawk RAX45 WiFi-6 to my network My modem is a Modem/Router Netgear N450 (Cox) There is also a Router Belkin 54G F5D72304 When I get this working, I want to repl...
antinode
May 31, 2021Guru
> My modem is a Modem/Router Netgear N450 (Cox)
"N450" is a speed, not a model number. Look for "Model" on the
product label. Something like "CG3000D", perhaps?
> [...] want to get the RAX45 working with the N450 before I make the
> jump to the new modem.)
Cascading multiple routers can cause multiple problems, especially if
you try to jam a square peg into a round hole.
If you want to use the RAX45 as a router with your old modem+router,
then the reasonable thing to do would be to configure your old
modem+router as a modem-only. You might then have a chance of
configuring the RAX45 with your desired LAN address scheme, without the
conflict with with your old modem+router which is using the same scheme
in a different place (hence, "The IP address conflicts with the WAN IP
subnet. Please enter a different IP address.").
Visit http://netgear.com/support , put in your (actual) modem+router
model number (or something very like it), and look for Documentation.
Get the User Manual (at least). Read. Sadly, I saw nothing there like
what I expected to find, so it's not obvious that that thing has a
modem-only mode. You might be able to get close if you configure
the thing with NAT disabled, and a LAN subnet other than your usual
"192.168.56.*". (I'd try a settings reset, to restore its default
settings, then disable NAT, then connect the RAX45 to it, and see what
happens.
I'd also save the configuration of your old modem+router before doing
any of this, so that you could more easily put it back as you had it.
According to its User Manual, the CG3000Dv2 is so ill-suited for use
in this mode, that I'd go straight to the new modem and new router, and
run the grand experiment, rather than play with novel ways to simulate
a CM1100 using your old modem+router. You might need to call Cox a few
more times, if you need to switch back and forth, but I'd take the
chance.
- GaryLCMay 31, 2021Aspirant
Netgear N450 is a CG3000Dv2
I will work on disabling the CG3000Dv2 router.
The problem I had with Cox is that when I first tried to enable the Netgear CM1100, it got part way through and then wouldn't complete the connection. Had to call Cox to trouble shoot. He didn't find anything obvious so we put every thing back to the CG3000Dv2. His suggestion was a service contract to track down the problem. I don't want to be completely down for several days while I trouble shoot connection problems.
- GaryLCJun 02, 2021Aspirant
Trying several settings to disable the CG3000Dv2 router part of the modem. Not having much success. Somehow, I managed to change the router address and now I can't connect at all. Will take time off work and go home and work on it. Think the only way I can get to the router now is to do a full reset. I am connected through a direct lan connection,not wireless.
I have no idea how the IP was changed. It may have happened when I disabled NAT. But I can't connect and have no way of determinging the current IP address. What ever it is, it is not 198.168.56.xxx. I have some internet connection but it is limited and some sites, like Netgear, won't respond at all. So at the moment, all if FUBAR. So will see what happens with a factory reset and then try to reconfigure to get back to where I was.
Have had good results with Netgear in the past which is why I went that way this time. But really frustrated with an error message that won't give you any indication of how to fix it. Looks like trying to upgrade with the Nighthawk RAX45 was a bad idea. Maybe better to start with a brand new network. Between computers, NAS, TVs etc, I probably have 50 devices potentially on the network. I don't wan't to have to build everything up from scratch.
- antinodeJun 02, 2021Guru
> The problem I had with Cox is that when I first tried to enable the
> Netgear CM1100, it got part way through and then wouldn't complete the
> connection. [...]Nothing I can do about that, whatever it means.
> Trying several settings to disable the CG3000Dv2 router part of the
> modem. Not having much success. [...]Not much meat on that bone.
> [...] Think the only way I can get to the router now is to do a full
> reset. [...]That's typically a good way to restore normal operation after
misconfiguration.
> [...] I am connected through a direct lan connection,not wireless.You, personally, are "connected" to what? Some computer or other is
connected to a LAN port on the RAX45, or the CG3000Dv2, or what,
exactly? Wireless devices are on your LAN, too, but I'll take that as
meaning an Ethernet connection between something and something else.> I have no idea how the IP [address] was changed. [...]
Which one? A router has two: LAN and WAN/Internet.
> [...] some sites, like Netgear, won't respond at all. [...]
"Netgear" is a corporation, not a web site. Actual URL? And this is
with what as a modem, and what as a router, connected how?> There is also a Router Belkin 54G F5D72304
Doing what? Connected to what, how? (Hint: If a device has
different types of ports, then "connected to device" is not enough
detail.)> [...] But really frustrated with an error message that won't give you
> any indication of how to fix it. [...]The "fix" is not to try to configure the WAN/Internet interface of
the router on the same IP subnet as its LAN interface.> [...] Looks like trying to upgrade with the Nighthawk RAX45 was a bad
> idea. [...]I'd say that the bad idea was trying to use a CG3000Dv2 as a cable
modem-only when it apparently has no such mode of operation.> [...] Maybe better to start with a brand new network. [...]
If I wanted to make the RAX45 work, then I'd get a cable modem which
will work with your ISP. If they can't puzzle out the CM1100, then I
might try a different maker and/or model.> [...] Between computers, NAS, TVs etc, I probably have 50 devices
> potentially on the network. I don't wan't to have to build everything up
> from scratch.What's to "build up"? With a working router, you should be able to
set the router's LAN IP address as you'd like it, and the wireless stuff
(SSID(s), passphrase(s)) to what you had before. Then, with a working
modem, I'd expect all your client devices not to know the difference.I see that I overlooked this earlier:
> Also, what is with the MAC address?
> 08:36:C9:8E:5E:43 (MAC address on the Box)
> 08:36:C9:8E:5E:44 (Router Mac Address) on the Internet port.
> There must be 2 MAC addresses but what are they?
Every network interface has a MAC address. A router has two network
interfaces, LAN and WAN/Internet. Which MAC address you want depends on
the interface of interest. I'd expect both to appear on the ADVANCED >
ADVANCED Home page in the router's management web site.