Just updated the firmware on my iX6820 too ver 2.
I then tried to open the web page and it now wants a login.
I tried most of the common ones that came to mind.
I saw severl comments saying "canon" as a password by no login name.
so I "assumed" blank/canon and admin/canon no joy...
I assume this is posted someware, and i'm just not hitting it with my search?
Odd it updated to requireing a login by no warning to me...