Hey ade,
sorry to say that this does not fix the behaviour.

I tried it with 1-6 (which I was informed about to update a week ago) at home, but could not reproduce. So I reinstalled to 1-5, but could also not reproduce (tinkering with local ad-hoc WLAN and my hosts file).
Either it worked or I got a pop up.

But today I passed a WiFi Hotspot and here I could reproduce it.
After pushing "current cellular info" the app is still responding to button pushes, but no action happens anymore. Seems like a endless loop/timeout in background.
So my guess is you check via nslookup (or similar) for resolving of hostname and if successful, then try to fetch info? This would explain behaviour I have seen, as this hotspot needs some http site access/registration before you have real internet access. Would like to check myself in sources, but I am a bit handycapped atm.