@biatch0 

My sincere thanks for finally formally releasing version 1.5.8 for my M4 V2. A completely useless adjustment to the existing functionality, as was the case with firmware update 1.5.6.
It would be to your credit as TP-Link and it would also be high time that you as TP-Link take responsibility and fulfill your obligation to your customers to bring the M4 V2 up to the level of the M4 V4 (Deco 1.6.0 /1.7.0/1.1.0/1.2.0 Firmware Update).
As well as communicating with them about this in a professional manner as befits a software manufacturer and providing them with clear information about this.

  @JaapHoutman I think they won't release a new firmware with 1.6 full functions as V4. They want us tò buy new models or V2 hardware won't support some of the new functions. Too much time has passed...

  @David-TP 
Is there any way to select a manual signal source on Deco E4?
I have an XE75 Pro as a main unit and 2 Deco E4 as satellite units.
The E4's always connect to the main unit, I want them to connect trough each other.
The XE75 Pro has manual signal selection but the E4's doesn't seem to have it.
My bedroom is farther away than my hallway, I don't need blazing-fast speeds there, however, I do need it to be stable and it sometimes drops out because it's always connecting to my main unit and not the other satellite that's closer.

  @PreyK Which hardware version are you using of the M4 and of the XE75 Pro? Thanks.

  @JaapHoutman 

Edit: looks like I mistyped it, I have two E4's not M4.

The XE75 Pro is V2 (EU) and both the E4's are V2 (EU) as well.

  @PreyK The function you are looking for is as far as I understand only supported by V4 of M4:
 

@JaapHoutman Thanks! That's unfortunate. But Finally managed to make it work trough some jank.

1. Wrapped my main unit in aluminium-foil so signal strength drops and there's no way it reaches my bedroom unit from the living room.

2. Removed my bedroom unit from the mesh.

3. Moved my bedroom unit to the furhest possible point of my bedroom.

4. Added my bedroom unit as a new device.

5. It connected to my hallway unit!

6. Removed the aluminium-foil.

I wish there was an easier way to do that but oh well... I guess physics works too.

  @PreyK  Genius! A simpler solution would have been for TP-Link to fulfill its obligations to its M4 V2 customers and ported the functionality of the M4 V4 to

the M4 V2.

  @ImtiazAli 

TP-Link recently announced the X10. Which seems to me to be a worthy successor to the M4. What I miss on the product page of the X10 is a document that describes a clear and complete overview of the functionality that the X10 offers. In my opinion, the same shortcoming also occurs with other models, such as the X20, X50, X60, etc., etc.
What's your opinion on the upcoming X10, also held up against the X20 and X50?
Thanks.