There used to be a newer firmware for the 8030P. It appeared briefly on the German TP-Link site, but disappeared again a couple of weeks ago. It's still available here:...

These connect to powerline, and act as a WLAN AP. You need to set up the powerline connection, feed one of them LAN from your router, and then set up the WLAN function in each WPA4220.

Which "the AV500" adapters do you have?

That is purely gross media capacity not being the same thing as net payload throughput. Besides, with those adapters having a 100 MBit/s LAN connector, you can hardly expect to get more than about 85...

There's a firmware update for the 8030P, with much improved payload throughput. That said, there is a speed loss in mixing those two series, and here's why. The 7020 uses one single wirepath with a...

Well ... the sad truth is, powerline transmission can only be as good as your powerline wiring is. In my house, the worst powerline connection improved more than 10-fold after some major rewiring of...