One of my friends gave me their Powerline adapter TL-PA411 quite a few years ago and it has recently stopped working. All 3 lights are on on both parts and I haven't changed the socket that either are plugged in to. On my computer it says that there is no internet connection where the Ethernet connection would normally be.
I've tried re pairing and when I do that now both parts lights just keep blinking? Not sure if they're just too old and have stopped working or something but any help would be appreciated!