First of all, you need to search for Gouly lighting in Apple App Store or Google Play and download the app;

Then follow the guide in the app to enter the controller WiFi connection page, connect the controller to the same 2.4G WiFi network as your cell phone connection, so as to enter the pairing mode, usually wait for a little while for 2 minutes to be able to connect the pairing successfully;

Note: When connecting for the first time, your WiFi router and the controller need to be as close as possible during the connection process to get the maximum pairing signal to make the connection more likely to be successful.

First of all, please make sure your WiFi network is a 2.4G network and is working properly;

Then check if the WiFi network that the mobile controller app is connected to is the same WiFi that your phone is connected to;

Then check if the logged in WiFi account and password are correct, you can also try to move your cell phone or device closer to the WiFi controller to get a better signal.

Sometimes, restarting the WiFi controller and router can also solve the connection problem

Yes, you can, because our WiFi smart controller is WiFi and Bluetooth dual-channel connection, LED WiFi controller needs WiFi connection to control it remotely, you can also connect it via Bluetooth, so as to realize the control without WiFi.