If your Roomba won't connect to WiFi, you're not alone. This common issue can usually be fixed by checking your network, resetting your robot, or reinstalling the iRobot Home app. Make sure you're using a 2.4GHz network, keep the Roomba near your router during setup, and reboot both your device and WiFi to restore connectivity. https://roombasmarti.com/how-to-connect-roomba-to-wifi/