I have tested the performance of AV1000 TL-PA7020PKIT both with other coexisting devices and alone. The results are similar.

No this issue has not been resolved at all. I have used the tp-link utility to monitor how the devices were behaving. There are clearly substantial performance discrepancies. I will had some screens...

Model : Hardware Version : Firmware Version : ISP : Hi, I have recently (April 2017) purchased a AV1000 TL-PA7020PKIT, I also own a AV1200 single Ethernet plug kit and a older AV600... I clearly was...