Try moving your iKettle 2.0 closer to the router, as the kettle is searching for your router and not your smartphone.
The Smartphone is just displaying what the kettle can see.
Try pressing the refresh button each time until your router appears.
Check your Smartphone Wi-Fi settings to ensure that other products can see your home Wi-Fi network.
The kettle is looking for a 2.4ghz signal, please ensure the network you are trying to connect to is 2.4ghz.
Please do not hesitate to get in touch with Smarter Support by emailing us at firstname.lastname@example.org. You can also give us a call us on 0800 802 1237 if you are in the UK or EU or on +1 (855) 489 5522 if you are in the US.