In light of reports from other trackers and bug reports on the uTorrent
forums,
uTorrent 3.1 will be removed from the client whitelist within the next day. If you are affected by this change, we urge you to immediately downgrade to a bug-free version of uTorrent (preferably pre-v3). Be sure to make a backup of your %AppData%\uTorrent folder which you can use to restore all your torrents once you switch versions.
Windows XP
C:\Documents and Settings\[username]\Application Data\uTorrent
Windows Vista / Win7
C:\Users\[username]\AppData\Roaming\uTorrent