If you pull up your available Wi-Fi networks, the one that’s closest to you appears first. Sometimes, ISPs (Internet Service Providers) don’t make it clear which Wi-Fi is ours. Try the first one on the list and input your Wi-Fi password (on the back of your router).
Otherwise, type the IP Address (on the back of your router) into a web browser and input the word Admin for your username and password. Then, you can see more information about your router and ensure you’re connecting Alexa to the correct Wi-Fi network.