@TP-Link 

Still pending to hear back from support in this issue. Below is a diagram of the current Deco placement through the house: with current and desired connection...

The "red" line is what is actually happening. and as a summary:

- If I remove the # 3 Deco, and try to have all clients connect to through only the #2 and #1, clients on the basement will have speeds up to 200+ Mb, however, not all clients will be able to connect due to dead zones.

- If I then add the # 3 in the basement, clients can connect but network speed drops between 100 to 150 MB but, noticed that the # 3 Deco always connects to the # 1 , bypassing entirelly # 2.

Waiting to hear back from support to "at the very least" "daisy chain" the systems for troubleshooting purposes before I change my mind on keeping these devices.

@TP-Link I have an X20 and 3 P9 Deco's. I want the  X20 to be the master to enable the best support for the AV and Parental controls, and the three P9's to be satelites around the house.  One P9 can be hard wired on Cat6, and the other 2 are in other parts of the house on the same UK ring main.  Setting the P9 as master the PLC backhaul is enabled, but setting the X20 it is not.  I want the three P9's that provide the satellite coverage to use PLC from the P9 with cat6, there does not seem to be a configuration that enables this, 

Is there any firmware options that allow P9 to backhaul between each other when satelites so that they link like this to maximise throughput.

@TP-Link 

there is a firmware beta of 1.6 for m9+?!

can i get a link too please 

Currently running 1.5.5 (was able to download before build was removed)

I currently have 4 deco m9+ (three setup) and I'd love to be able to select signal source please 

@TP-Link 

In my case, yes. From my diagram above, if I leave Deco's 1 and two connected, I get very good speeds, but many dead zones through the house, specifically in the basement.

When I add the third one (in the basement) speed drops considerably and almost no dead zones. Just some unstable connections from the security cameras.

In regards to your statement "is not always a good thing to connect to the nearest Deco",we cannot tell unless we can tell the Deco which source to use.

In my case, the price tag on these devices do not commensurate with the result. Note that I replaced Google WiFi AC1200 systems that provided stability, whole house coverage and some speed (depending on the location). I was looking to take advantage of the 802.11AX standard being some of my devices are AX capable.

Unfortunately it is not the case. Two Deco's X68 get me speed but no whole house coverage. When adding a third one, I get almost whole house coverage but speed drops specifically because this third one connects to the farthest one and there is no way to configure it to use the nearest one. 

Even if it is a frequency/protocol regulation within WiFi technologies, we should be able to "test" different implementations so that we can choose the one that fits the best as it is very well known that system's based decisions are not always the desired one.

Anyway, if it cannot be done in these devices, I guess probably the X68 is not the option ( for me at least).

@Andyl73 Is there a Beta firmware for P9 that improves things 

@Lexivienna 

Hello, any chance there is something similar available for E4 at the moment? I would like to test it 🙂