My Asus DSL-AC68U worked great for a couple of months. A couple of weeks ago it disconnected and now will not stay connected for more than a couple of seconds. Tried factory reset etc but no luck. Plug the HH5 back in and it reconnects no problem, but the wifi on it is terrible which is why I bought the Asus in the first place.
Any chance you could post your settings up so I can compare. I got mine from some random online post from a year or so ago.