http://bugs.winehq.org/show_bug.cgi?id=25212
--- Comment #6 from Bruno Jesus 00cpxxx@gmail.com 2013-08-21 19:08:28 CDT --- I can reproduce this error in wine 1.6, but not in wine git. I don't know where the problem was or what fixed it, but in wine git I receive a username/password incorrect message after sometime (seeing a lot of socket communication) instead of the unknown error message.
Test server: http://dodin.org/piwigo
Can anyone else retest?