iPad still connecting to Game Center Sandbox in airplane mode

Question

This seems weird, but the iPad I have is still successfully connecting to the Game Center Sandbox even though airplane mode is on. It would seem when debugging iPad the device somehow connects thru USB to internet (is this the case?)

I'm just trying to test the case where there is no internet connection and make sure there is a graceful fail.

Anyway, how do I disable internet connectivity on the iPad device then?

Answer 1

If you're logged into Game Center on the device, then apparently the GC login request will always appear to work immediately and it will say Welcome back, PLAYERNAME *** Sandbox ***. I think it must be echoing the last known GC server IPs. That doesn't mean you can reach the GC servers though.