At times, the Canon Camera Connect application for iOS may behave incorrectly when attempting to connect an iOS device to a camera via Wi-Fi . Deleting the app's saved state in the background can oftentimes correct this. This does not harm the app or the device and simply causes the app to launch with a default "state", which can eliminate many issues that prevent the app from connecting to the camera and performing correctly.
Solution Connect the camera to a printer via Wi-Fi to print as follows. These steps show how to use the camera as an access point, but you can also use an existing access point.
Press the [MENU] button on the camera to open the menu, switch tabs, and select [Wireless communication settings]. Selecting the Wi-Fi function settings menu Select [Image Sync], and set either [Still images only] or [Still images + video].
Once you’ve set up the initial pairing, you’re able to set the camera to automatically connect when turned on. When the app is active it switches from Bluetooth to Wi-Fi