Can't get NED to work on iPad

Hi there,

Just purchased an iPad2 and downloaded NED for iPad from the App Store.

When I open the app and press login I get a dialogue box "N.E.D could not connect to a network" despite that I am connected to a wireless network.

Is there some obvious set-up step I'm missing?

I tried selecting the Account and Downloads tab and that doesn't alter the display from the welcome to NED for iPad screen.

Suggestions please.

Thanks

David