help with o2 homespot finding kindle

Hi,

I just got a kindle and it can’t find my o2 homespot WiFi- I have other devices that are connected, I have reset the router and the kindle many times and it still doesn’t work. Is there a button you have to press on the homespot to make the WiFi signal visible? Or are there proxy’s that are preventing my kindle from finding it? It’s very strange as I have used a neighbours WiFi and my own hotspot on my phone and the kindle connects fine - problem is with WiFi