Can't see wifi device since I changed from Ethernet to Wifi

I have Home Assistant running on a Raspberry Pi 4. Until recently, the Raspberry Pi was connected to my Fritzbox via LAN. Now I have removed the LAN cable and connected the Raspberry Pi to the Fritzbox’s WLAN using the Home Assistant interface. Since then, I no longer see any smart home devices connected to the Fritzbox via WLAN in Home Assistant.

What changes do I have to make? I already changed IPV4 to DHCP.