wifi suddenly gone

I left my brand new Macbook Retina 13-inch sit for the weekend. Woke it back up this morning and suddenly Wifi has an X over it saying "Wifi- No Hardware Installed"


Everything has been running pretty smooth in 10.11 so far until this.

Replies

What happens after a reboot? Still the same issue?

Have a a look into Crash Reports under ~/Library and /Library - are there any airport-related crash logs? I had the broadcom driver crashing from time to time.

Reboot did nothing. I tried several times. Finally solved the issue with a shut down and let it sit for a while and restart.