I`ve just got my new phone, a Samsung Galaxy S3, the 4G version, but I`ve found that the wi-FI range is pretty poor at home. My router is upstairs but if I leave the room its in my signal vanishes whereas everything else, laptop, tablet, other phones all work fine. What I have found though is if I switch my Linksys/Cisco wag320N router over to the 5Ghz band then the wi-FI on the phone is very fast, unfortunately the laptop, a Sony Vaio just doesn`t work. And seeing as the laptop is mostly used downstairs this is a problem. So I`m looking for a modem/router that does 2.4Ghz and 5Ghz simultaneously. I almost bought an Asus RT-N56U from AV Forums. Even though this is a cable router I was told I could use my existing Linksys as a modem and connect it to the Asus for the routing. I don`t know if thats true or not or whether its an ideal solution. So, does anybody have any advice or recommendations for a modem/router that would serve my purposes. In the meantime I`m having murder with Orange trying to get this phone replaced under warranty but all they want to do is repair it, which they`ve already tried once and told me theres nothing wrong with it. But thats another story.