APK Cannot Access the internet

Hi,
I emulated my ionic app and everything works fine. But when i do 'ionic run' to install the app on my device, after installation the app cannot access the internet.
Please note that this is a debug version of my apk. I have added the latest whitelist plugin as i am running cordova 5.3.3 and i have also added the allow-intent, allow-navigation and access tags to config.xml, also i have checked AndroidManifest.xml to ensure that all is working well yet the app does not access the internet on my device. CSP has also been added by the way. Please help. Thanks.