NETGEAR WAX610 Dual-Band WiFi 6 Access Point

StephenB​  Nothing over-thinking here. A wireless AP on a single SSID does work for multiple WiFi devices just like an Ethernet switch - no router or even a LAN uplink is required. Same applies e.g. to the NTGR WACx5x, WAX6xx, WBE7xx models. Nothing crazy about that.

Keep in mind that -all- devices require IP addresses in the same IP subnet for talking to each other. So what works nicely on the home or business network needs to be adopted slightly for operating in a pure standlone local network.

In the AV world, there are often complete unmanaged networks in use, without any additional network infrastructure, no router, no DHCP server.

Main/Secondary comes in the play when two independant AV networks are deployed for redundacy only. In the AV world, it's not uncommon to operate two redundant networks.

Connected devices are operating in Auto Config aka. ZeroConf mode, with self-addressing, aka Bonjour in the Apple world, on the Main network, and and some pre-defined default IP subnets with static IP addresses on the devices on the secondary. 

To make your confusion complete dear StephenB​ the NTGR WAX76xx and WBE7xx are offering the ability to configure a AP local NAT mode, makling that This would make that SSID behave almost like a common consumer router LAN with a DHCP server, and doing M2one NAT to the physical AP LAN port (almost like a consumer router WAN port). No idea, if that SSID mode is really fit for operating audio, often requiring ICMP Multicast.   

TheGuru47​ Think I have covered and explained every (or at least most I can think of...) possible aspect why your WAX610 does apparently not work as you expect with the unknown iPad setlist App. Admit, you don't talk to Apple geeks here...bt I'm happy to help!  

Fun fact? We're operating exactly the same AP for supporting wireless NDI cameras (== mobile phones!) on a deidcated network, admit -with- a DHCP server on the infrastructure, because I don't want to explain uncommon user settings (like keep the connection upo "without Internet") for our amateur camera-operators in a BYOD environment.

Double check please: There is no wireless device isolation configured?

Regards,

-Kurt.