Hi Bernhard Philippczyk
Welcome to the Embedded Community!
Could you please provide us more details, what Processor and Wireless Card are installed in your computer?
According to http://www.notebookcheck.nl/Asus-X72-serie.39605.0.html ASUS X72Vseries there are several designs.
I know the processor Duo P7350 but I didn´t know the type of wireless card. I have a sticker on my laptop with the text "Wireless 802.11n+BT. Does this answer match your questions?