From issue tracking (http://steamcommunity.com/games/232090/announcements/detail/230023941344052932):
If enough do this maybe we can help fix the issuesDO NOT USE THE DEDICATED SERVER TOOL in your steam library. Set up a proper dedicated server: https://steamcommunity.com/linkfilt....php?title=Dedicated_Server_(Killing_Floor_2)http://wiki.tripwireinteractive.com/index.php?title=Dedicated_Server_(Killing_Floor_2)