Help Sleep mode cuts wifi

[Dresire]

Hey there !

Whenever the screen of my phone gets to sleep, it cuts the wifi. I may have set this myself as I'm new to cyanogen7, but I can't find where this damn option is !! Please help

 

[saltire]

It's in Settings > WiFi & networks > WiFi settings

then press phone Menu button, Advanced option and its under WiFi Sleep Policy