Just in case this helps anyone, the setup here at this site may be very different. But at another site,we have found that sometimes when you add a torrent to utorrent 3.3, utorrent strips most of the torrent announce, including the passkey, as it loads into the client. The proper announce with passkey is present in the downloaded .torrent file, utorrent corrupts it as you add it.
The only way to get round this is either to downgrade to a lower version of utorrent, or edit the passkey and announce in each torrent. Adding the right passkey and announce will enable the torrent to start where this is the problem.
utorrent 3.3 is not much good, in my opinion…