The Null Device authentication problems

Is anybody else having problems scrobbling tracks to using third-party software?

My home music-playing setup consists of a Linux box running MPD, a client-server music playing system. To this, the mpdscribble client is attached, monitoring its status and sending the details of tracks played to As of a few days ago, though, mpdscribble stopped working; it connects to's servers well enough, though once the time comes to send a track, it reports an authentication error, as if the password were incorrect.

I have tried the same username and password combination for logging into the website, and for using the official OSX client, and it works. I have also tried two other, independent, MPD/ clients (scmpc and lastfmsubmitd), and found that they had the same problem; as, indeed, does the (somewhat old) third-party iScrobbler client for OSX. (This was, needless to say, on two different machines.)

Could have broken an older version of the AudioScrobbler protocol used by a lot of open-source software? (It appears that these clients use protocol 1.1, whereas there is now a 1.2 protocol.) Oddly enough, a Google search fails to reveal anybody else reporting this problem.

There are 2 comments on " authentication problems":

Posted by: lastfmproblem Sat Feb 9 18:01:36 2008

Yeah, I"m having the exact same problem

Posted by: acb Sat Feb 9 20:31:07 2008

Apparently a workaround is to change your password (to the same one as before will work). Which suggests that this issue has to do with localised data corruption on the submission servers.