If your WiFi network changes, you will need to change your device WiFi configuration.
Steps to change WiFi Configuration:
1. Make sure you are on your home 2.4 GHz WiFi network.
2. Make sure that your device LED light is solid green. If it's not, then press and hold the reset button until the LED light turns solid green. This can take up to 1 minute.
3. Tap on the Settings icon > WiFi >Change WiFi settings popup message saying that the device will be reset to factory default and you will need to go through WiFi setup again>Yes>Follow the on-screen wizard instructions to set up WiFi