I am moving into a big new house and will be using my router to provide WiFi access to three floors and outside the house. My current router is a NetGear N600 (WNDR3700) which I bought four years ago. It works fine in my present, tiny house and has never given me any problems, so I'm keen to stick to NetGear, I'm just wondering if it has the range and speed to stream substantial amounts of data in a much larger setting as described, or if an updated version might be in order. Securing my network is also important. Suggestions welcomed.