I have an HS100 Kasa Smart Plug (UK version), ver 4.1 hardware which I am trying to get connected to my WiFi. This plug was previously connected but has sat unused for the last few months.
I currently have 20 plugs connected to my WiFi (eero mesh) via the Kasa app, all working fine. I have reset by pressing and holding the reset button for 15 seconds, but the plug fails to connect.
Using an iPhone, location services and local network is ON. The WiFi network of the plug appears in the WiFi options - upon selecting the Kasa app will cycle for a few seconds before the error "Unable to Connect to your Smart Plug Wi-Fi" appears.
I have tried all 4 troubleshooting steps listed on that screen. Please help.