I just got a WD TV Live player and it randomly logs me out of my netflix account asking that I reactivate it. With my other players (Roku / Seagate) Netflix has a code that I authenticate at the netflix.com site. With WD I have to type in my username and password (a pain with the on screen keyboard and left, right, up, down controls). With those players I have never had an issue wher i have had to revalidate the netflix account.
Any help or feedback in why I am constantly asked to re-authenticate?