If you get the following error message: Could not load exp://ipaddress on your Expo App in Android and IOS phone when you try to scan the QR Code, you can try the following solution. This problem occurs especially if you connect to via WIFI or cable through your router. Unfortunately, when connecting to the local development computer, it picks up the first priority address specified in your local computer. To fix it, please follow the following steps. Note: the screenshot of the images are taken under Windows 7.