At first I was excited. In the Fritz box surface adapter 80MBits were displayed for the TP-Link. After a few hours, it suddenly came to first disconnections, which also happen repeatedly. The displayed by the Fritz box connection is now on average at 30Mbits. The connection is made from the ground floor near Fritz box to the basement to the PC. I'm trying it now with a product from AVM: PSC = 1 & Smid = A3JWKAKR8XB7XF