http://bugs.winehq.org/show_bug.cgi?id=7996
--- Comment #10 from Tobias Jakobi liquid.acid@gmx.net 2008-03-10 10:07:31 --- Oh yes, the network stability problem with 1.50 beta is not related to wine. When hosting the server on a windows machine other windows clients also experience lag and other stuff.
Hosting the server on a linux machine with wine also improves the situation a little (maybe because of the better network implementation). Again, the 1.50 beta patch doesn't seem to be useful when wanting to play on LAN (or online).