I have the NSX-46GT1 Sony Google TV. Wi-Fi stopped working awhile back. Trying to troubleshoot. Internet works when wired. But the TV doesn't pick up the router signal now. I bought a Belkin N600 DB Dual-Band Wi-Fi USB Adapter but it's not connecting either when plugged in. I tried going through the settings and have been unsuccessful in getting this to work. Any ideas on what to do next to get this to work?