Having the original Atheros driver (Bluetooth_Atheros_7.4.0000.0125_W7x86W7x64_A.zip) installed funzt it.
Sorry, the ASUS support me not give this tip. Driver from the ASUS page work for me not (although I use a ASUS computer).
Due to initial difficulties and lack of support on ASUS only three stars. Otherwise, the part is now running properly.