3ds wifi network login? [closed]

I've been having issues with my ds, connecting to wifi that involves a webpage login. It never used to have the problem, and then all of a sudden it has just quit. I've tried everything I can think of to resolve it, but it's gotten me nowhere. There's so little information on this problem, I'm guessing because so few people know how to get around it, but I've seen that it is not uncommon at all.... any advice would be greatly appreciated!