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Orbi BRB50 assigns IP addresses in AP mode

Crick
Tutor

Orbi BRB50 assigns IP addresses in AP mode

Steps:

Factory reset BRB50

Log in over wi-fi

Set device to Access Point mode (DHCP connected)

Cable the BRB50 to a Nighthawk 7000 serving IP addresses in the 192.168.1.2-254 range

 

Reboot the BRB50.

The Orbi picks up an ip address in this rage: 192.168.107.xxx 

It then assigns addresses in this range to devices that connect to it. 

None of these connected devices can communicate with the Internet through the NIghthawk.

I can force connection of a device by fixing an IP address for the Nighthawk and setting the device to manually assigned IP address.

 

The Orbit did not used to do this. It used to connect as an AP quite compatibly. 

 

Ideas?

 

 

 

Model: RBR50|Orbi AC3000 Tri-band WiFi Router
Message 1 of 6

Re: Orbi BRB50 assigns IP addresses in AP mode

What's the router in front of this Orbi?

 

 

Just another user.

My network DM200 -> R7800 -> GS316 -> PL1000 -> Orbi RBR40 -> Orbi RBS50Y -> RBS40V
Message 2 of 6
antinode
Guru

Re: Orbi BRB50 assigns IP addresses in AP mode

> [...] a Nighthawk 7000 [...]

 

   That's an R7000?  Look for "Model" on the product label.  Firmware
version?  Connected to what?

 

> The Orbi picks up an ip address in this rage: 192.168.107.xxx

 

   The first mystery would be from where it's getting that address.  If
the R7000(?) is "serving IP addresses in the 192.168.1.2-254 range"
(which would be normal), then my first guess would be that you have some
other DHCP server on your network, and it's operating on a
"192.168.107.*" subnet.  I would not bet that the DHCP server in an
R7000 is granting IP addresses from some different, odd-ball subnet.

 

> None of these connected devices can communicate with the Internet
> through the NIghthawk.

 

   If they're using different IP subnets, then that would not amaze me.


> I can force connection of a device by fixing an IP address for the
> Nighthawk and setting the device to manually assigned IP address.

 

   I have no idea what that means.  "fixing" what, exactly, how,
exactly?  "setting" how, exactly?  Describing actual operations with
standard terminology would be more helpful than vague and idiosyncratic
intepretations of what you think the meaning of what you did is.

 

> The Orbit did not used to do this. [...]

 

   Perhaps you didn't always have some other DHCP server on your
network.

Message 3 of 6
Crick
Tutor

Re: Orbi BRB50 assigns IP addresses in AP mode

Solved.

 

The problem was that the ADT Alarm company's gateway, a Netgear device, was assigning IP addresses. The ADT installer, some years ago, connected the LAN side of the gateway to a switch serving my whole-house CAT5 network . This served a purpose at the time of allowing cameras or other ADT-controlled and wired devices to receive an PI address from the gateway. The Orbi, in access point mode, was on the same switch. This allowed the ADT gatway to assign IP addresses to wireless devices. The only mystery is why, over the past couple of years  the Orbi has been operating in this mode and configuration, was the ADT gateway not assigning addresses but instead the the Nighthawk R7000 managed to do all the wired and wireless IP assignments through the same switch. 

 

Regardless, mystery solved. 

 

Regardless, problem solved by disconnecting the LAN side of the ADT gateway from the physical network to which the Orbi attached.

 

For reference and answer to @antinode 's questions:

  • Yes, R7000.  There is no other Nighthawk with the 7000 number.
  • fixing, as in the verb, "fix": "to give a permanent or final form to." A fixed (static) IP address is an IP address is a dedicated IP address. In this context, "fixing" as in "assigning" - perhaps a dated term.

 

 

 

 

 

 

 

 

 

 

Model: RBR50|Orbi AC3000 Tri-band WiFi Router
Message 4 of 6
antinode
Guru

Re: Orbi BRB50 assigns IP addresses in AP mode

> The problem was that the ADT Alarm company's gateway, a Netgear
> device, [...]

 

   Not a very detailed description of that device.

 

   > Yes, R7000. There is no other Nighthawk with the 7000 number.

 

   Except for the others.  From the list on Netgear's support page:

 

      A7000 - Nighthawk AC1900 WiFi USB Adapter - USB 3.0, Dual Band
      C7000 - Nighthawk AC1900 WiFi Cable Modem Router
      C7000v2 - Nighthawk AC1900 WiFi Cable Modem Router
      D7000 - Nighthawk AC1900 WiFi VDSL/ADSL Modem Router
      D7000v2 - Nighthawk AC1900 WiFi VDSL/ADSL Modem Router
      EX7000 - AC1900 Nighthawk WiFi Range Extender
      R7000 - Nighthawk AC1900 Smart WiFi Dual Band Gigabit Router
      R7000P - Nighthawk AC2300 Smart WiFi Dual Band Gigabit Router

 

> fixing, as in the verb, "fix": [...]


   Knowing what "fix" means (which I did) does not help to discover
what's being fixed.  "an IP address for the Nighthawk" does not say
which of the two IP addresses you meant, or how, exactly, you were
fixing it.  A router like this has an address for each of its
interfaces, WAN/Internet and LAN.

 

> [...] A fixed (static) IP address is an IP address is a dedicated IP
> address. [...]

 

   Not really.

 

   Terminology: A "static" address is configured on the device itself.
What you configure on a (DHCP server on a) router is a reserved dynamic
address, not a static address.  Either is a fixed address, but they're
not equivalent for all purposes.

 

   So, "[...] you have some other DHCP server on your network [...]"?

 

   But it's nice that you found the offending device, whatever it is.
(You might want to mark the thread as Solved.)

Message 5 of 6

Re: Orbi BRB50 assigns IP addresses in AP mode


@Crick wrote:

 

For reference and answer to @antinode 's questions:

  • Yes, R7000.  There is no other Nighthawk with the 7000 number.

 


For future reference, there is also the D7000 Nighthawk DSL modem/router and the C7000 cable modem/router, not to mention the R7000P router.

 

It may seem like nit picking to want to know what we are talking about but they are all different and people have got them confused in the past. 

 

I could also lob in the A7000, which people sometimes use that model number when posting questions about the X7000, bit that is a completely different kettle of fish.

Just another user.

My network DM200 -> R7800 -> GS316 -> PL1000 -> Orbi RBR40 -> Orbi RBS50Y -> RBS40V
Message 6 of 6
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