Clients connected to NWA50AX PRO not visible on FritzBox 7590 interface

CyberHeal

Hi everyone,
I recently bought a Zyxel NWA50AX PRO (PoE) to use as an Access Point connected to my FritzBox 7590 router.
The setup was quite straightforward: I configured the NWA50AX PRO in Access Point mode only (no DHCP), so the FritzBox continues to handle all IP address assignments and DHCP, including static IPs I had previously set up for my devices.

The issue I’m experiencing is this: devices connected via the Zyxel AP are not showing up in the FritzBox user interface, where I usually see all LAN and Wi-Fi connected clients.
I was expecting that, since it’s working as a bridge, the FritzBox would still list those clients under the LAN section or similar.

Is this normal behavior when using the Zyxel AP in this way?
Is there something I might be missing in the configuration—either on the Zyxel or FritzBox side—to make those clients visible in the FritzBox interface?

Also, as a side note: I replaced a Fritz Repeater 1750E with the NWA50AX PRO, and I noticed that the Wi-Fi range seems slightly weaker with the Zyxel, even though it's a newer device supporting Wi-Fi 6. Has anyone else had a similar experience?

Thanks in advance for any advice!