This is usually due to one or more of the following:

1.  You entered the wrong password for the home wifi network.

2. The home wifi network runs in 5Ghz frequency while the bulb requires a 2.4GHz frequency wifi network.

3. The SSID of the network contains space of special characters.

4. The network password contains space.


You will need to address these before you can pair the bulb with the home wifi network.


To connect to the bulb back, you can restore it to factory settings. 

How to Factory Reset your WiFi Bulb