@Dim17 yes

FWIW, I've upgraded to 1.4.7 and my 3 Deco P7s are working OK.

Is there a 1.5 beta firmware for P7?

@pimseb Deco P7/P9 are not very reliable. You can use TP-Link AV2000 Powerline Adapters to connect the other building. It will be faster, you'll be able to check their status with tp's tlc app, and...

@DrKnorke The app usually does it all. It connects to the nodes via bluetooth and sets them up.

@DrKnorke P9 already has its own powerline adapter. You can use it without WPA8630, or you can use WPA8630 with M5/M9 etc.