Netgear R7000 as AP for wifi 2,4, 5 Ghz en guest 2,4

> I have a leading router [...]

 What is it?

>> My MAIN router, who gives (DHCP) the IP=numbers for normal and guest clients.

> [...] after my ISP.

Who is it?

>> My Internet Service Provider

> [...] This with wo different IP range 192.168.1.xxx and 192.168.2.xxx
> [...]

You lost me.  What, exactly, uses which IP address range?

Are you trying to say that your main router uses "192.168.1.*" for
normal clients, and "192.168.2.*" for guest clients?

>> Yes, normal clients range 192.168.1.xxx (LAN and Wifi)

and guest cliensts range 192.168.2.xxx (only Wifi)

I am using my guest wifi network for guest and IOT (Internet of Things) not for my home and business

> [...] My netgear R7000 must be only a AP ( accesspoint ).

Probably.  Did you configure it that way?

>> Yes. And SSID and password ( wifi-bands) are same as the main leading router.

> BUT the 2,4 Ghz guest-band from the leading router with IP range
> 192.168.2.xxx is not available !

What, exactly, is "not available" to whom, when you do what?  As
usual, showing actual actions with their actual results (error messages,
LED indicators, ...) can be more helpful than vague descriptions or
interpretations.

>> 'Not available" I mean to say. On the AP form the R7000 are 3 'bands' available.

Namely 2,4 ad 5 Ghz for normal clients in the range with Ip number 192.168.1.xxx

AND 2,4 Ghz for guests clients BUT it also use the IP range 192.168.1.xxx for normal clients. It must use the Ip-range for guests clients namely 192.168.2.xxx

> I think the R7000 is in AP-modus only for 2,4 and 5 ghz and not for guests.

      https://kb.netgear.com/26765

 The guest-network implementation on Netgear routers seems to be a set
of firewall-like rules, making it a router function.  When you configure
an R7000 as a wireless access point, you lose its guest-network
features.

>> When I read this, I understand that the R7000 in AP modus lose his function for a guests netwerk ! !

Yes, right it is not more a router/switch met wifibands and a guests network, It's only a AP ! !

But only a AP for ONE IP range ! !

So, it's only compatible for IP-range 192.168.1.xxxx for my normal clients. NOT for ny guests ! !

   When you connect an R7000-as-WAP to your main router, any client
device which is connected to the R7000-as-WAP will be seen by your main
router as a wire-connected device.  I assume that this would put such a
device on its non-guest subnet, "192.168.1.*".

   If the main router does not allow a guest device ("192.168.2.*") to
communicate with a non-guest device ("192.168.1.*"), then that would
include all the non-guest devices which are connected to the
R7000-as-WAP.

>> On my main router I have a tool (button) that says that the guest-netwerk (only wifi) can communicate with the other IP-range if I want.

So I can choose.

>> If I read your answer, all information on internet ( also Netgear) I think it's better that I can buy a mesh-router ! !