The first, and being my first post, I invite you to a virtual round the members of the forum.
I shall report my problem: we have two home i9505 Galaxy S4. After the reset to their original state, one has ceased to connect to the wifi from home. I get a message saying "I kept protected" and no mobile IP. I have two wireless routers, and my other S4 is connected without problem to them. Even in other networks, I get the message and remains blissful IP.
I've tried to root, delete the files in the folder and nothing dhcp.
Reset both routers (TP Link TL-WR842ND and Technicolor TC7200U, that of my cable provider in Germany).
Try two other wireless networks of friends and unsuccessfully.
I tried to install via Odin other firmwares and nothing.
I even removed the wifi password and nothing. I switched to WEP and WPA2 and change network name and either.
I tried WPS remains without access and IP.
With static IP, nothing.
I tried to use the wifi fix I found no solution here.
See if anyone has any idea what may be happening, that the issue has me crazy already.