http://bugs.winehq.org/show_bug.cgi?id=14900
--- Comment #5 from tiago gmacaco@gmail.com 2008-11-06 12:57:16 --- im not (yet) an expert, but this maybe related to the (closed) bug 5774. i get "disconnected" for around 15secs everytime i get a bad UDP checksum from one of the peers. hope it helps!