Do certain commands only work if you can tether your phone?

[Paul D]

I have 3 phones I am testing this app on. It's a very simple app. You click a button, it sends a POST to a webpage and answers the result (which is either success or fail). The app only has success on 1 of the phones I test. The other 2 fail. The only thing I can come up with is, the phone that has success; I am able to tether the internet from that phone to a laptop. The other 2 do not have the tethering service active with their providers. So, I took it a step farther and changed the POST code to just a simple LAUNCH URL, sending the parameters in the URL itself, launching the default browser in the phone and that worked on all 3 phones without issue.

So, I'm wondering... do certain commands require the tethering service to be active? I would be interested to hear if anyone tries a POST on their phone and whether or not it worked and if you do or do not have tethering.