If you have created a Multi-Device Hybrid App project to access an ePortal MVC Web Single Page Application, and when you try to execute the installed application on a mobile device it fails to connect to the MVC application, follow these steps to troubleshoot the problem:
Verify that the URL specified with the data-url attribute in the index.html page for the Multi-Device Hybrid App is correct, that it uses the https protocol (not http), and is accessible from the mobile device.
Open the web browser on the mobile device and manually enter the same URL that you specified on the data-url attribute in the browser address bar.
If step 1 fails, check the following:
Verify that the mobile device has network connectivity, such as a connection to WiFi.
Verify that the URL is correct and that the MVC application is running.
Verify that the device can resolve the DNS name correctly, if the URL included a DNS name; you may want to try using an explicit IP address instead.
Verify that there is no firewall issue that would prevent your mobile device from accessing the MVC Web application.