I have read the thread here (https://community.tp-link.com/us/home/forum/topic/150615) about the limitations of powerline adapters and I can confirm that its true. When my power line is on different circuits the speed does degrade SIGNIFICANTLY. I'm currently using the TL-WPA9610-KIT on the same circuit and it does work like a charm, Im getting gigabit speeds, on the other hand on separate circuits it basically falls apart.
Based on that limitation, my question is the following;
"Is it possible to create a bridge via Ethernet between 2 circuits using two powerline adapters??"
This is how im thinking about it
1) Grab a pair of non wifi(Ethernet only) powerline adapters maybe these (https://www.tp-link.com/en/home-networking/powerline/tl-pa7010-kit/)
2) Place both adapters on two separate circuits
3) Bridge the circuits with an ethernet cable plugged in to both powerline adapters. This eliminates the need to make "hops" from one electrical circuit to the other, and instead of making the hop, the signal is send over instead via the ethernet connection
4) After bridge has been established I can now plugin a wifi enabled powerline (perhaps this one https://www.tp-link.com/en/home-networking/powerline/tl-pa8010-kit/) into a wall socket where I need some wifi coverage and as a result, I get decent speeds regardless of which circuit im on
Also how come the TLWPA9610 KIT is not on the one mesh list (https://www.tp-link.com/en/onemesh/compatibility/) if the plan above could work, then there can only be one SSID for WIFI and that would be pretty cool