Then I swapped the part via Amazon. Super easy and very comfortable.
The new access point was then a day later with me. Anheschlossen and now already configured extensively. Everything works perfectly. I had probably caught a Monday device at first.
The settings are sufficient and do not overload. One gets along quickly and the look is super. Stable wireless connection (woraufs course of primary importance) is added to 100%. No more like my old D-Link terminations.
All in all, I give in spite of the first faulty True (may indeed times happen) 5 points. I'm very satisfied. And many thanks to Amazon. Great service! Great selection!