Wifi stops to work in idle

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http://unix.stackexchange.com – I checked Xfce power manager seems settings correct but laptop screen goes black after 10 minutes of inactivity. Actually the problem is that shared Wi-Fi (configured using hostapd package) stops to work. After that I can't get WIFI to work again without system reboot. Here is what I have and what have tried: Linux debian-dell-netbook 3.2.0-0.bpo.2-amd64 RTL8188CE chip with latest driver installed from sources Checked /var/log/* northing happens in logs WiFi works in 802.11g, with 'n' I got the same issue. sudo modprobe -rfv rtl8192ce && sudo modprobe -v rtl8192ce ips=0 fwlps=0 sudo (HowTos)