Mislabeled Powerline extender
This a WPA7617 unit, not part of a kit, but that does not appear in the drop down Model menu.
Just opened a brand new shrink-wrapped unit, plug it in and the SSIDs "TP-Link_xxxx" and "TP-Link_xxxx_5G" appear in my WiFi menu. When I select one, I am asked for my password, but the password from the label on the WPA unit is rejected. I then see that the label says the unit's SSID is "TP-Link_yyyy" and "TP-Link_yyyy_5G". Thus it appears the unit got the wrong labels applied to it and the password is not actually for the unit I have!
i have had dozens of these units over the years and have never encountered this before. Am I SOL or is there any way to get around this?