Něco snad vyřešili tady:

To fix, start the D-Link Air Utility under an Administrator-privileged account. Under Advanced, deselect the automatic startup of the Air Utility program. This gets rid of the messages, but non-admins can't run the utility.
Problematic version was (at least for me) this: Driver was (and is) 5.140.0523.2003, Utility was V3.1.5.30626
Now utility is V3.1.5.30808 and works fine with less rights. --> so updating utility fixed problem