Wifi keeps saying its turning on but never does

[AC Question]

I was listening to music on my Samsung galaxy ace 2, then i went on Youtube and i noticed it wasn't connected to wifi. So i went into settings and it was saying wifi was turning on but it never actually turns on. When I try to turn my wifi back off it wont let me. Can anybody help me? Ive been trying to figure it out for 2 hours now.

 

[B. Diddy]

Welcome to Android Central! Does this persist after a reboot?

 

[Maxx Sound]

Hello, I have same problem. HTC Desire 510. No modes (no root). One month now. My experience went many places. First, soft and hard reboot did not help. Reloading image did not help. HTC phone support could not help. Inspected, cleaned back cover antenna terminals. Downloaded ran WiFi fixer. I bought a new phone. I would very much like to "get into" my HTC Desire 510 and either fix or add external WiFi antenna capabilities. Thank you for any feedback and consideration.