I'm a cm11 user and since kitkat came out I updated to it.
As everyone know, some if not all devices running kitkat have this problem.
Nobody seemed to fix it so in this thread I'll try to find and share here all the info about this problem and, if possible, will try to keep the thread updates with the possible fix found in the net.
Now I'm with my smartphone, when I'll be back home this evening I'll post the solution that didn't work or worked for a bit.
If anyone knows some possible solution and wants to share is free to do it here, I'll add it to the OP.
About the bug:
The WiFi works for a brief period of time. After that, without disconnecting, or giving any sign of instability it just loses the internet connection.
To fix it you have to turn WiFi off or restart the phone. After some minute the phone does the same thing , finishing into an endless loop.
Thanks for reading.
Sent from my GT-I8190 using xda app-developers app