Have an Asus ultrabook laptop with an Atheros 9485WB-EB wifi/BT adapter. When I'm away from home, it works perfectly. At home, it sees our home network but refuses to connect to it - just get a cannot connect error. It used to work fine, and then it's gradually gotten worse. At first rebooting the laptop would make it work for a while, then that quit working. Now it's just non-fuctional at home. Home wifi works fine with other devices as well, and if I plug a USB wifi adapter into the laptop that works too. Home router is (I forget the model, have to look when I get home) running dd-wrt. Rebooting the router doesn't fix the problem. Any idea what would make it quit? No setting have been changed on the router during all this.