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WiFi Settings Tab Missing; WiFi Tray Icon Missing
It was working day before yesterday.
The Tray icon only shows the network/Ethernet adapter; the wifi icon is missing. Normally I'd click on the wifi icon to connect to wifi networks; that option is not available. Instead I get "Not Connected - No Connections Available." (If I plug in an Ethernet cable, that message goes away. But I need wifi!)
I head into the "Settings" app, choose "Network & Internet", and the topmost tab is "Airplane Mode"; the "Wifi" tab is missing from the Settings app.
I head into the control panel, network and internet, network connections, change adapter settings, and my Wi-Fi adapter is there, enabled, and full green signal strength.
"Intel(R) Centrino(R) Advanced-N 6235"
Disabled it and reenabled it to see if that would help, didn't help. Rebooting (twice) didn't help. Full power reset (press-hand-hold power button for 5 seconds) and restart didn't help.
Ran network troubleshooter, it says there may be an issue with the wifi adapter's device driver; it tried to fix it but failed. So I manually updated the device driver in the Properties dialog; that seemed to actually install a new driver (based on how long it took) but it didn't help.
I wonder if there was a recent auto-update for this device that's causing a problem? Or is there some way behind the scenes to hook up this device (who's driver seems to be working) with the windows 10 app (which isn't recognizing it)?
I'm pulling my hair out, and wasting a lot of time on this. Any help from the experts would be greatly appreciated.
Specs:
Windows 10 Home 64-bit, upgraded from Windows 7 about 3 months ago
Samsung Laptop