So we've run into a bit of an issue in our house with our ATV3. When we try to access movies or TV shows over the homeshare, it takes forever to load and to start playing. For a 2 hour (HD) movie, it can literally take 30 minutes to start playing. Now this ATV3 is probably at a further limit of the WiFi signal in our house from the router (a Linksys e3000), but it doesn't feel like that should limit it that much. Is the simplest thing to get an Airport Express or Extreme to extend the range of the WiFi? Wired networking isn't an option.