WiFi will not turn on, no networks listed.

[ngomaichi]

My WiFi connection worked yesterday, now it doesn't.
When you try to turn it on the button stays gray and the other side says "turning on"....but never does.
Bluetooth works fine.

Galaxy Note 10.1 2014 Ed.
SM-P600
Android Ver. 5.1.1
Kernel ver. 3.4.39-6161737 dpi@SWHD8915 #1

Please Help!!

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