Oké i've reset the device with the button "did not know it was one"I've just had the same problem, been driving me crazy!
Okay so found out that my router was the problem it's with wpa protection
It's a 2,4 router but it gave big problems
I've taking my D link from closet and now it works prefect!
Verstuurd vanaf mijn SM-G900F met Tapatalk
Your post helped me out.
Sent from my LG-H815 using Tapatalk