Can't get AX3000/RAX36S to function as AP

The RT*M (4-Stream AX3000 WiFi 6 Router Model RAX36S User Manual, p.75) is very clear to set up the router as an AP: 

• Get dynamically from existing router, or
• Use fixed IP settings on this device (not recommended).

Connect your new AP direct to the router, or a known working direct router connected Gigabit Ethernet switch. 

Assuming you select get dynamically, check your DHCP server (typically your router) for an IP address assigned, based on the RAX36S MAC address supplied with it's DHCP request. Open a Web browser requesting the DHCP assigned IP address. This is the only reliably way to check the RAX36S AP mode.

Should this proof to fail, please don't hesitate to contact the Netgear Support via https.//my.netgear.com/ - select your newly registered router via [View Product], then [Request Hardware Support]. This is why all new acquired products are covered with 90 days of support.  

If this test is does pass, repeat the same test with the RAX36S connected to the hopefully working RAX30 in AP mode LAN port, connected to the primary router.

Desperate to generate more nightmare and frustration? Put up fixed IP configs to the APs, please with correct subnet masks, default gateway IP addresses.

Said that, (I'm not Netgear): For reliable AP installations, deploy real GbE or MultiGig switches, ideally with PoE++ support to provide power to real wireless access points. Scratch these consumer class router daisy chain ideas, or buying consumer routers for AP deployments.

Asking a moderator to move this thread to the Nighthawk With WiFi 6 (AX) And WiFi 6E (AXE) Routers section where all Nighthawk (RAX and RAXE Series) router products are discussed.

Regards,

-Kurt