Home Assistant green with SLZB-06 Zigbee ethernet PoE can't find Zigbee devices

Dear Community,

I have just installed my home assistant green (Core:2025.1.4; Supervisor: 2024.12.3; Operating System: 14.2; Frontend: 20250109.2) and I connected a new SLZB-06 Zigbee ethernet PoE usb adapter via a POW Switch and an Ethernet cable.

HA found the SLZB-06, I integrated it and updated the firmware. Now, it shows up as “SMLIGHT SLZB” and “ZIGBEE HOME AUTOMATION” under configured integrations (see screenshot). I added screenshots for both.

When I go to ZIGBEE HOME AUTOMATION and I want to add a new zigbee device, it doesn’t recognise any devices.

I tried to pair an Innr Smart Plug, and a Candeo Smart Dimmer Switch. I did a reset on both, and both were in pairing mode (for a while).

It seems like I have a problem with my configuration and I would really appreciated your help.

Thank you very much in advance,
Matthias