Place your device closer to your router and make sure the Wi-Fi signal is strong enough.
Check if your router is working properly and its SSID is not hidden.
Check your Wi-Fi password, set it up again with a correct password.
Check your Wi-Fi Network, Noorio devices B200/B210/B310 can only connect to channels 1-11 on a 2.4GHz Wi-Fi networks with WPA/WPA2 encryption.
Try to change your Wi-Fi name with English letters.