Let me help you but I am afraid to say I can provide support on English and Spanish but I do not know French.
I would like to know more about this issue such as what steps you need to take to reproduce the problem. Can you also let me know the wireless card installed and driver version running on your system?
As another step, please attach your dxdiag report here. How to get it?
Dxdiag Report: Type dxdiag in Start Menu> open> Save> Attach using Advanced Editor Options.