@David-TP Yes my network is arranged like that. My PC connects to the deco WiFi. My router has no wifi. I have tried to access the IP of my Nas with my PC but I cannot connect to it. The TP-Link...

@David-TP I have my internet connection into my router PC and from there to my power line network with 3 adapters (an 8010 and x2 8030's) downstairs with my primary deco M9 taking it's internet feed...

I have a pair of M9`s that i use for wifi in my house running in AP mode through powerline adapters and a homemade router PC. I recently had to reset the M9`s as one would not connect to the other...