I have the TL-WPA4220 KIT to get internet to a dead spot in one bedroom. There is very little app or firmware support for issues on these devices, but I did get it up and running and was able to use tpPLC and the link to web based settings from inside tpPLC for some time. I had the base unit in an old router from maybe 2005 (router being used as AP) and in general I could load tpPLC and check settings and status. I upgraded the AP router to an old NetgearR6300 for better AP speeds. After that, I can not see any of the PLC through tpPLC. I can see on the PC program (off and on) and I know the WiFi is working on the PLC, but it doesn't load on tpPLC . Tried resetting, re-syncing, etc etc. again, can see when connect a computer to the WiFi or LAN port on the PLC, but not tpPLC .
I also find on my phone only the internet from the PLC constantly loses access and comes up with some random funky IP. Again, only on my iPhone which is the only phone with tpPLC . But all other devices work.
Anyway, 1 star since the devices are working and can access settings via LAN but not the phone app after just a change of the AP it's running through.
One more note. If I move the 2 devices to one same outlet spot and connect, then tpPLC sees them sometimes.
It's useless unsupported tech and program. Very disappointing....