http://bugs.winehq.org/show_bug.cgi?id=22479
--- Comment #44 from Juan Lang juan.lang@gmail.com 2011-10-23 10:59:51 CDT --- Created attachment 37081 --> http://bugs.winehq.org/attachment.cgi?id=37081 Patch: Initialize CurrentIpAddress pointer in IP_ADAPTER_INFO
Random guess: does the attached patch help?