Agreed, I'm sitting in my neighborhood Starbucks with this same problem, I pull up my browser to connect so I can play Monster Hunter 4 Ultimate online with friends, and maybe check in with pokemon shuffle, and I get this message. Not even a chance to look around in the browser: as soon as it boots, I get the warning window, and when I hit OK, it sends me back to the home screen. Please help us fix this, or figure a way around it?
Note: this is the first time since the latest system update that I've tried to access the internet. Nintendo, what did you do?