I am having the same issue Pandora just suddenly stopped working on my Roku with the same error - "unable to automatically sign in. Roku failed to provide the required account information. Please login using email and password." Roku Model 3941X, Express 4K+ I did EVERYTHING multiple times.  Updated software (didn't need it) Rebooted multiple times.  Removed channel, reinstalled, multiple times. Tried to "reactivate" and the error I get is on the Pandora website -  Server Error We're sorry, there has been an unexpected error with our server. Please try again, or visit the Pandora home page. So. Pissed.  ... View more