Quote Originally Posted by Miltani View Post
i received the email but whenever i try to login to the alpha forums i get the following error

認証時の環境との同一性が確認できませんでした。恐れ入りますが再度ログインからお試しください。
"Identity with the environment at the time of authentication could not be verified. Please try logging in again, sorry"

If I were you, I would try clearing all my cookies and restarting your browser. Or try in another browser.