TBF to Noinchki you do not mention that you are attempting to connect to a BT Business broadband service. His post is correct for BT Broadband users.
This begs the question: Are there two versions of the HH, a business and home, and if so I guess they would be identified which type by a label on the device.
Yes there are two versions, and yes to the label identifying it also.
Usually when connected the business routers will connect with a default login then will go get their user specific details shortly after ....... But I suspect this isn't any help to your question either.