You should still be able to. Nothing has changed in the authorization code. Make sure your username and password is correct.
Mk, I got my modem working with brand new stuff. Send me a PM and i'll send you the download link.
I'm sorry, but you are going to have to wait until I can get a new modem. My modem finally decided to die out on my and I'm on my neighbors internet and I can't access their router to port forward my home server thus can't send you the download link.