@Raymonf started this claim that any client starting with WLM 2009 and above that somehow “connects” to the servers when he was trolling everyone with fake WLM 2009 (14.0) connections that unfortunately meshed with actual login attempts (or at least I think there were).
Someone else pointed out what you saw, and when I claimed that there’s also the possibility that someone at least got through the connection stage of WLM 2011, @Raymonf jumped out of nowhere to claim that it could be another troll. Really, at this point, we don’t know exactly unless someone shows us if WLM 2011 actually connects to the severs.