I have a very strange issue with my network connection on my laptop.
My LAN connection disconnects every time my lcd screen light turns off. and when I press a key or move the mouse to turn on the screen the lan connection restarts and gets connected again. but it will be disconnected all the time that the screen is off.
System: Lenovo-T500 ( Win7 Pro x64 )
I have a PC with the same OS connected to the same network and don't have this problem with my PC it's only happening to my laptop.
this will even happen if I turn my laptop's screen off manually using a function key.