Did you check the firmware listed for the TL-PA7027?

@zip031 Did you try the D-Link PLC utility? For the TL-WPA7510 with the bin file the WLAN part was updated, the powerline part not.

For australia it is 240 volts and 50hz which is the same as europe. USA has 120 volts and 60hz. In the pib file there is a powerline spectrum adapted to the countrys power frequency and this spectrum...

@turboleak Using as well on WPA8630 V1 OpenWRT. What I don`t linke at OpenWRT is that if you use some additional ipk files then after every OpenWRT software update you need to install these again....

The suffix p does mean it has a power outlet which is not linked to any software function. The firmware for p and non p is identical.

I don`t know. It has something to do with special functionalities, maybe for connection monitoring.