Why is the wifi of my iPhone 5s grayed out?

[iMore Question]

The wifi of my Iphone 5s is greyed out, after a day that I update my ios, help me to fix it

The wifi of my Iphone 5s is greyed out, after a day that I update my ios, help me to fix it

 

[John Yester]

Re: The wifi of my Iphone 5s is greyed out, after a day that I update my ios, help me to fix it

Reboot device, or go to general, reset and choose reset network settings.