http://bugs.winehq.org/show_bug.cgi?id=9787
--- Comment #78 from mortan lenz_fabian@yahoo.de 2007-11-10 07:17:00 --- It's surprising how much eMails with redundant content I got through bugmail over the last weeks.
Summary ----------------------
Wine version 0.46 broke most of WarCraft 3 multiplayer functionality (Battlenet and LAN) and even parts of the singleplayer. This is likely related to Andrey Turkins patches which partially implements a new functionality (http://bugs.winehq.org/show_bug.cgi?id=9787#c9).
What left is the correct implementation of the AcceptEx function (http://bugs.winehq.org/show_bug.cgi?id=9787#c66), which WarCraft probably needs for single- and multiplayer. There is a patch with an ad hoc implemention of AcceptEx (http://bugs.winehq.org/show_bug.cgi?id=9787#c48), but it don't work yet.
So as an user, you have to wait until AcceptEx is fully implemented or revert back to version 0.45 or earlier.
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I hope that I don't missed any facts.