Athom Homey ikea trådfri gateway app, "no devices have been found"?

I have a homey and have connected alot of things, many sensors from aqara, outlets from innr, a siren etc. All works well except IKEA stuff. Now I am trying with the IKEA tradfri gateway app, and when I click on add device, choose the gatway app and the outlet it says no new devices have been found.

Grateful for advice

What type(s) of devices do you have connected to the gateway?