I've just bought a Macbook Pro (2011) and we have an iPhone in the house. We use tethering from my Android because I get unlimited tethering data and really fast data speeds. Unfortunately, it only works on an open connection. So it's not secure. That's obviously not ideal - does anyone know of a solution for this? WPA2 connects for about 3 minutes then stops working. If i run diagnostics it then works but only for 3 mins (ish) again. Thanks