Buffalo Router Issues

[ashoka232]

Hey y'all, first of all, if you need specific info, let me know. I bought a Buffalo router, like a lot of people, because the life stick sucks nuts for Leonet. So my problem is that even though I can get to configuration page with it plugged into my laptop, it's always connected no internet no matter what I do. Whenever I try to connect my phone to the wireless, it tells me I need to sign in to  and then tells me "authentification failed". What the hell do I do to fix this? Is it even possible to have my own router on Leonet?

I am not savvy with internet related things, so explain things as simply as you can please.

Thanks, everyone.

cinema hd v2

[davo]

Buffalo haven't sold routers outside of Japan in nearly a decade, so what router did you actually buy? Model number?