Adding TP-Link Kasa Device

I’m trying to following these instructions: TP-Link Kasa Smart - Home Assistant

I added the device to the Kasa app and I can control it.

I followed the steps for adding a device manually. I added the IP address of the device and it just says “Failed to connect” after a few seconds. I tried scanning without a host and it didn’t fine anything. I tried rebooting HA and that didn’t help.

Is there something I’m missing?

Did you ever find out what to do? I have the same problem…