So what a waste!

I tried to configure the router as it was indicated in (Amazon) cheers reviews: well then I came at the top of about 54Mbit / s not out, but that was the rare stroke of luck; the router "worked" quite a long time in the lower part of 5-6 Mbit / s - and that's incredible crap. And I had a distance of about 6 m and a thin wall between routers and receivers. For good end, I left everything automatically configure the D-Link Setup Disk - and even had the same crap. Perhaps there is in this router different production standards (made in China), maybe the unit was defective. No matter, I can only evaluate what I saw and that was truly garbage.