@Ole_C_L-1 If all it takes is router restart, I can offer you a workaround until more permanent solution can be found. Get TP-Link Kasa Smart Plug HS103, connect X50-4G through it to electric outlet...

@Pip60 It will remember all settings. Also, it is safe to power off/on Decos - they will not forget settings after power off.

@brunogiger Yes, you can. E4 is very similar to M4R in specs, except E4 has 100Mbps Ethernet ports. If you plan to use E4 with WiFi backhaul - this is good addition to M4R Deco mesh.

@EmDee73 If you haven't bought PX50s yet or can return them, you can buy set of "regular" TP-Link powerline adapters and set of TP-Link Deco X50/X55, and combine them.

Mystermatt wrote I live in a ~2500 sq ft house so it's a normal residence size as well so I'm not sure if switching to Access Point is what i'm supposed to be doing or not given the default Router...

@Adex1 PLC means P9 connects through powerline. If PLC symbol appears and dissapears, that means P9 can not estable reliable connection through powerline. P9 switches between powerline and WiFi. That...