Connect App not picking up wifi when scanning

Hi, I know this topic has been posted about before. I have a couple of wifi blackspots in my house, especially the kitchen and second bedroom. However when I connect to the wifi to start scanning on the Connect App, it just tells me I'm not connected to the internet and so doesn't complete the scan. I'd like to order a wifi pod to see if this helps, but without completing the scan, I'm not sure how to do this. Any advice?

Thanks