In Android I'm using the following snippet to load Google maps:
Uri geoURI = Uri.parse("http://maps.google.com/maps?saddr=" + source + &daddr=" + destination);
Intent mapIntent = new Intent(Intent.ACTION_VIEW, geoURI);
startActivity(mapIntent);
Over Wifi or a 3G network, the functionality works fine, but over our APN it fails. Does the link redirect to some other address or go to some domain that I also need to register with our APN?