http://bugs.winehq.org/show_bug.cgi?id=5774
------- Additional Comments From scott@open-vote.org 2006-27-08 02:21 ------- You're not using a Linksys WRT54G router are you?
http://www.utorrent.com/faq.php#Special_note_for_users_with_Linksys_WRT54G_G...
Basically some crummy router firmware might not release any of the ports, and after using Wine or uTorrent for a while it'll simply run out of namespace to use.