Pers,
The message does not necessarily mean that you personally are banned. It is generic, and applies to all forms of banning, whether by name, e-mail address, or IP address.
It is likely, since you are on a dynamic IP address, that you are occcasionally connecting from within a range that has been banned from the forums.
The next time it happens, I want you to immediately send an e-mail to us. Do not disconnect and reconnect before doing so.
AnandTech Moderator