http://bugs.winehq.org/show_bug.cgi?id=31994
--- Comment #19 from Erich Hoover ehoover@mines.edu 2012-10-23 09:44:14 CDT --- (In reply to comment #18)
... (My simple patch is only provisional, finally it should to (at least) do something similar like Bruno told above, i.e., it should test if EACCES is related to broadcast packet according to destination IP. Or maybe better: patch should test destination IP address before calling of WS2_send and modify the packet appropriately - like (probably) do Windows...)
Give attachment 42240 a try ;)