iATKOS Inside: Macbook Air 2011 .. Installed Sonama .. and the post install Patches .. everything works just fine except the wifi.. my wifi is connected but it doesnt work unless i go in the room whr my wifi is .. i need help

Macbook Air 2011 .. Installed Sonama .. and the post install Patches .. everything works just fine except the wifi.. my wifi is connected but it doesnt work unless i go in the room whr my wifi is .. i need help