Did you set up the Wifi on the camera? If so, turn your camera on and enable the wifi via the Go Pro app. Then you have to go to your phone settings, find your camera's wifi name, select it and enter your password. Then open up the app and connect to your camera.
Go into your wifi prefs Tap and hold your Gopro wifi network Modify network Check advanced options Change IP settings from DHCP to static IP adress : 10.5.5.109 Gateway : 10.5.5.1 It works very well.