Banshee crashes upon connection to Last.fm

[Andrew Gee]

Previously working fine, but banshee now crashes when it tries to send data to last.fm. Banshee debug log is attached. Extract of problem from log below:

[21 Warn 11:57:54.935] Caught an exception - System.Net.WebException: The request timed out (in `System')
  at System.Net.HttpWebRequest.EndGetResponse (IAsyncResult asyncResult) [0x00000] in <filename unknown>:0
  at System.Net.HttpWebRequest.GetResponse () [0x00000] in <filename unknown>:0
  at Lastfm.LastfmRequest.Post (System.String uri, System.String data) [0x00000] in <filename unknown>:0

Unhandled Exception: System.ArgumentNullException: Argument cannot be null.
Parameter name: stream
  at System.IO.StreamReader.Initialize (System.IO.Stream stream, System.Text.Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize) [0x00000] in <filename unknown>:0
  at System.IO.StreamReader..ctor (System.IO.Stream stream, System.Text.Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize) [0x00000] in <filename unknown>:0
  at System.IO.StreamReader..ctor (System.IO.Stream stream) [0x00000] in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) System.IO.StreamReader:.ctor (System.IO.Stream)
  at Lastfm.LastfmRequest.SetResponseString () [0x00000] in <filename unknown>:0
  at Lastfm.LastfmRequest.GetError () [0x00000] in <filename unknown>:0
  at Lastfm.AudioscrobblerConnection.OnNowPlayingResponse (IAsyncResult ar) [0x00000] in <filename unknown>:0

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: banshee 2.5.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-15.22-generic 3.5.4
Uname: Linux 3.5.0-15-generic x86_64
ApportVersion: 2.5.2-0ubuntu4
Architecture: amd64
Date: Wed Sep 26 12:03:04 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: banshee
UpgradeStatus: Upgraded to quantal on 2012-08-19 (37 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.