I was using the app which is installed on my desktop. It does not say note failed. It asks for a password then does nothing and the password box pops up again.
I've been a premium user for years and I'm having the same issue. It asks me for a password to sync then won't sync, only asks me for my password again. I've reset my password and still the same problem. I guess I'll have to say goodbye to Evernote.