Question

Is there a way to debug airplane mode on the device? I tried turning airplane mode on in the device settings and disabling the internet connection on my computer, but NetworkInterface.GetIsNetworkAvailable() still returns true. Am I doing something wrong?

Answer 1

Notice the comment on the bottom of the official doc:

This API will always return true on
the Windows Phone 7 emulator. Testing
therefore requires a facade, mock or
conditional chunk of code.

I just tested this on an actual device and indeed, it returns a constant true.

However, the thing is – it is all because you keep your phone connected to the PC and the Ethernet interface is available. Once you disconnect the phone and start the app, you will see that a False will be returned.