Raspberry Pi3 WIfi

My Raspberry Pi3 wifi is not working, it always shows “No Wireless interface found”, I don’t know what to do.
I think it works last time.
Any one can help me?

Hi Yi,

There’s a few different suggestions on this Raspberry Pi forum post which seems to have gotten most people over the line. It looks like a config setting issue. Before you try that though, what operating system are you using? Also, have you performed an update and upgrade of your current OS?