I can't log in with either my 'free' or 'open' accounts. The client outputs something like this:

  12:53:03.051 I [ap:1387] Connecting to AP B2.spotify.com:4070
  12:53:03.054 I [ap:937] Connected to AP: 78.31.8.17:4070
  12:53:03.073 E [ap:3280] Connection error:  404
  12:53:03.576 I [ap:1387] Connecting to AP B1.spotify.com:80
  12:53:03.609 I [ap:937] Connected to AP: 78.31.8.15:80
  12:53:03.629 E [ap:3280] Connection error:  404
  12:53:03.810 I [ap:1387] Connecting to AP B3.spotify.com:443
  12:53:03.840 I [ap:937] Connected to AP: 78.31.12.9:443
  12:53:03.913 E [ap:3280] Connection error:  406
  12:54:25.855 I [offline_authorizer.cpp:156] Unable to login offline: no such user