But why -and also 1 star haul-off. I have now the third unit within the last 5 years, in which the password does not fit on the device with the password in the device together. So who does that Powerlines set by Utility, this should first check the correctness of the printed Password Keys.
Action
Powerline to the power outlet
Connect LAN cable from the router to Powerline
Start TP-LINK Utility
read under "Status" tab and check the password with the device ....