Well, folk ask about it all the time. Try a full reset before you call it in. Also, try it wired.
I've had this TV for a couple years now and love it. I don't normally use the Smart TV stuff, but I like keeping my gear up-to-date. I noticed that I hadn't had a firmware update in a while, so I tried forcing one. Turns out, I wasn't connected to the internet.
When I go into Network Settings and ask it to scan for wireless networks, I get a spinning icon then nothing. If I turn off the TV, turn it back on, then try it, scanning for wireless brings me to a second screen which quickly disappears.
There are no error messages. Just a silent fail. My router is working fine - all of my other myriad devices (PS4, Xbox One, tablets, cell phones, etc.) are all connected to it and working with no problems. SSID is on.
I'm at a loss, and I'm concerned that this could be the start of greater hardware failure. Please help.