alienware wifi keeps dropping since windows 10 upgrade

Hi

My M17 is constantly dropping out since upgrading to windows 10,i have since rolled back to 7 and it works fine. However i prefer 10 so i keep going back,it starts off every now and then and gradually gets worse untill as of now it wont work at all.

Its fine when i plug an ethernet cable in.

Is there anything i can do as i dont really want to go back to 7 as i used to have BSOS problems which i have never had with 10

thanks