1. Please make sure the device make cheerful music before connecting to server. Cheerful music means connected to router. If not, please check WiFi connection first.
2. Please make sure the router is working correctly.
3. Please try the set up once again, 2nd attempt will increase the success rate.
4. If still failed, please try another 2.4G WiFi.
More question, please contact our support via live chat or email email@example.com.