I have a Mac Mini, it is hooked to a D-link router with a 50ft ethernet cable. I have never had problems in the past using my MacBook over wifi, but it seems like I am constantly losing my Internet connection on the Mac Mini. I have no problems when I am on it, but if I leave a download going, then come back, it seems to almost always pause or cancel the download. It has happened downloading songs from Napster through Safari, it happens in iTunes, and in Software Update. OSX should not go to sleep if it's downloading a file, right? I even installed Caffeine to make sure it stays awake. Any ideas on what the issue might be? Or what I should try to do to figure it out?