If you want to purchase a new Modem/Router, there are plenty to choose from. (If you are an internet user that only checks & sends emails and occasionally browses the internet your probably satisfied with how things are running now). If not! An ideal start would be to ask your friends what they think of the new NBN and if they have done anything to improve the performance. Everyone has a different setup for different situations. For example: I have 3 mobiles at any given time accessing the internet via WiFi. I also have 3 PC's which two are running practically all day via Ethernet (LAN Cable). This is a normal situation for my household without any complaints or hiccups.