Phonegap/cordova Android App Has No Access To Internet Via 3g/4g Alone

I'm having an issue with only a handful of users reporting that they are not able to use my application (which requires internet access) over mobile network internet. They are not

Solution 1:

We finally got to the bottom of it.

It was a DNS issue. Our primary web application is a Google App Engine hosted app, and we use wildcard subdomains in that.

The Android application also contacts a subdomain under the same domain (mobile.{domain}.com) but this is hosted on a separate server and does not rely on GAE. Calls from the Android app while on the mobile network kept going to the GAE app rather than the API endpoint I set up at mobile.{domain}.com, guess it was some sort of DNS propagation issue for the mobile internet.

But here's the kicker, the subdomains were not new, they are a couple of years old.

To solve it, I set up a .net of our domain to point to the same server, set up an endpoint and now all is well.