maybe you are entering your password with a typo by accident?

uh, absolutely not... it is saved, I never type it.... I just click click click... then sometimes it goes after 6 or 10 clicks... but now I know that, when it happens, I just need to open one of the many vpn and it goes.

I start to think it is by design: I share my netflix account with friends (of course I do!) and when I meet them I often realize they do not use my account thinking I changed the password (which I never did). I actually arrive in netflix the same way... by a shared account from a friend that started not to work... see? it can easily be a strategy.