Well, I kind of solved it... First of all: The powerline LED obviously does not have to be "on" when you plug in the very first adapter (and no other TP Link device is already in the circuit). This...

Well, it only seems to be paired. After about one minute they loose the connection again. And in the utility it says that there is no other device but the local one. So this is why I wanted to know...

Model : Hardware Version : Firmware Version : ISP : Hi @ll First of all: Sorry for my English, I try to explain as good as I can... After about 2 years of working fine my TL-PA4010 start to mess...