Adding NSAllowsArbitraryLoads to plist Still Not Working

Hi I am new to iOS development.

I have a PHP file on another machine that creates JSON, and wanted to grab it from iOS application.

I tried to use the IP address to connect from the iOS application with NSURL

NSURL *url = [NSURL URLWithString:@"http://192.168.xx.xxx/JSON/JSONtoIOS.php"];

Then, I added below code in info.plist file:

<key>NSAppTransportSecurity</key>

<dict>

<key>NSAllowsArbitraryLoads</key>

<true/>

</dict>

However, I am still getting a same error message: "Transport security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file."

The URL opens fine on a web browser, but having a problem with NSData returing nil.

Can anyone help me on this issue?

Thank you.