Almost got badge #5, but...

[ISNorden]

I know I'm sounding clueless here, but...how do you get the game to recognize your Internet connection? I'm at the Burole Town Pokémon Center and just tried to get into the GTS; the game told me I needed a connection. (I'm running Win10 64-bit Home Edition with an Ethernet hookup, if that helps; my copy of Uranium is up to date.)