WiFi turns off on sleep topic

Hello there!

I am running the latest 5.0.1 SkyDragon ROM and everything ia just great.. Wifi works, everything works as it shouls be.. But i have one issue..

When i lock my phone or the screen goes off even for 10 seconds the wifi disconnects and it doesnt connect untill i turn on the acreen/unlock the phone..

I checked Settings->wifi->advanced and i set it to never go off when the phone is on sleep..still doesnt work

Any solution?