1. APP, Bluetooth and Wi-Fi versions are not updated to the latest version.
2. The distance between XenLock and GW10 is too long.
3. The distance between GW10 and Wi-Fi AP is too long. When Wi-Fi has lost connection, the display will show blinks in red. When network connection is unstable, the display will show blinks in blue.
4. Switch to Bluetooth connection on Brilong App. Then, confirm whether XenLock can be controlled.