My Viao connects to the internet with LAN but it doesn't detect the WLAN. I have done different things and none seem to work. I have also done some trouble shooting through Windows and the system says that the network adapter is not connected and need to be configured? Sony has some drivers and such that might help https://www.sony.com/electronics/support/articles/00006787 but they aren't for Vista only for Win7. I checked inside the laptop and the wifi card is properly seated and connected, the wireless light has never been lit. There's also continuity from the adapter all they to the antenna. I've also checked the drivers by going to the device manager and checking for updates under the network adapter and it says that the most current drivers are installed, i've also uninstalled the network adapter driver and installed them back. It's funny because i see the ROKU under the network screen... I'm thinking the WIFI switch might be faulty but that wouldn't make sense since it detects ROKU?