http://bugs.winehq.org/show_bug.cgi?id=31438
--- Comment #112 from Bruno Jesus 00cpxxx@gmail.com --- There has been some discussion on wine-devel list about a patch that make Guild Wars 2 work better (lower network latency and less login failures), maybe it's worth a try here. If anyone is interested:
http://source.winehq.org/patches/data/102695