I am having a similar issue, but it seems to occur only when I am inside wolves den arena. ill be fighting and all of a sudden, I get instantly disconnected. This has happened three times now in a single day. And then I can't requeue for another lovely 30 minutes every time. I am on skype chatting friends while this is occuring, so I know for a fact that it is not my internet going down, it is the game losing connection.