@DarthTom 

Hi,

As it's rather unlikely that all of your client devices support WPA3 already, you should probably better go with the setting "WPA2/WPA3-Personal", which is also being called "WPA3 Transition Mode".

This will allow older client devices that are not capable of using WPA3 to connect with WPA2 security.

For WPA3-capable client devices that were previously connected to your AX11000 via WPA2 you will probably need to delete (or "remove", or "forget") the existing connection on the client device and then re-establish the connection to your AX11000 (i.e. click/tap on the SSID of the wireless network and enter the wireless password). The client device should then connect via the highest available security standard, in that case WPA3. (provided the device in question does indeed support WPA3)