with do respect do you have every device listed running at once on your network if so thats a good problem starter, you need to give the defualt pc used for wow a static ip which should be done with in the router then you need to do prot forwards for that pc's staic ip for wow hopefully that helps, also if you can plug into a lan wireless packet lose is horrible and probly isn't helping you any.
i hope you understand that its late and i am drained