I bought one yesterday and put my virgin into modem and connected it following instructions and it has an orange light and I can't use WiFi help please

I would like to add another two adapters into my network as stated in my other thread and I already have this av600 kit https://www.tp-link.com/uk/home-networking/powerline/tl-wpa4220-kit/ and I use t

So I curently have this product and have been using it for a few years now and works perfectly fine https://www.tp-link.com/uk/home-networking/powerline/tl-wpa4220-kit/ i connect the smaller one to my