Open the command prompt window on your computer and enter "ping 192.168.XXX.XXX" (you can find the device's network IP address in the device settings on the mobile app). If you receive a "Reply" command, it means that the device and the computer are on the same LAN. If you receive a "Timeout" command, it means that the computer and the device are not on the same LAN. Please check if the router has network isolation enabled, and connect the computer and the device to the same LAN before trying again. Alternatively, please check if your device is on the list of devices supported by Yeelight Station.