@TP-Link I have 3 Deco BE25 units that replaced 4 M9plus units.

 

They are all connected via 2.5G capable (Cat6) cables. Randomly the map will switch to a star pattern, where all the satellites connect to the main Deco, and even with the Ethernet connection, the Wifi speeds drop by a lot (about 4x-5x). (Ethernet is in a daisy chain connection WAN-> Main Deco -> Hall Deco -> Bedroom Deco)

 

Rebooting the closest Deco will then connect it back into a daisy chain pattern, but occasionally the wireless backhaul will go back to connecting to the main Deco which is going through more brick walls. This doesn't seem to affect the wifi speeds as much if at all.

 

I'd rather not be monitoring my speeds at all times to figure out what the hell is going on.

Please include “connection preference” for E4R

12345678ak

Needed for E4R, seems like it used to be fine but recently all devices only want to connect to the main unit resulting in a poor connection for those furthest away. Easily solved if it had this feature on those devices and puts me off buying anything newer from TP-Link at the moment.

does the manual source selection include the 5 ghz & 6 ghz channels i live in cluster of apartment building 30 plus routers close by i have disabled the 2.4 ghz i have lots of interfere on the 5 ghz & 6 ghz the ai wont go past 36 for 5 ghz 6 hgz band 53 both are very saturated i cant seelect the higheer channels to cyt down the interference I would very much like gave this feature on the deco line i use the ex75

TP-Link wrote

Background:    

Some users might notice that all satellite Deco units are connected to the main Deco, instead of the nearest satellite Deco.

 

 

Typical Layout:

 

 

Why does the satellite Deco still keep selecting the main Deco as a signal source instead of the nearest satellite Deco?
Deco will choose the best signal source by itself. The selection does not depend absolutely on the signal strength, but also on the connection rate.  Sometimes satellite Deco units may get slower speed due to half-duplex mode and interferences caused by connected devices like phones, or other devices.  To ensure the satellite Deco gets reliable speed, the main Deco stays selected by Satellite Deco after comparative analysis. 

Some users tested that after moving one of the satellites far enough and not being able to reach the main Deco, they finally get the desired connection map:

However, the speed of the satellite becomes slower than what it could get when connecting to the main Deco directly.  Due to the working pattern and protocol/regulation of Wi-Fi technology, the more wireless hops, the slower the speed would be. This rule applies to any kind of mesh or extender system. So it is not always good to connect to the nearest Deco unit.

 

Solutions
Deco Firmware Updates Adding Signal Selection and VPN for Multiple Models

 

Related FAQ:

How can I find a suitable spot for my Deco?

 

  @TP-Link 

Adgjh1245

TP-Link wrote

Update: 

If you are experiencing a performance issue that might be brought by the “inappropriate signal source” and the current firmware does not support changing the signal source either, please email support.forum@tp-link.com with the following information:

 

1. Please add more details about the current performance issue.

2. Please add a picture of your detailed network layout about the location and distance of each Deco unit like the topology mentioned in the OP.

3. Please save some screenshots of the current network map and signal strength on the Deco APP, such as:

 

A further notice*:If no performance issues have been noticed, the current selected Deco is actually indeed the best signal source since the distance is not the only factor which decided the signal source, the position of the satellite units and the barriers around all needs to be concerned.

 

Thank you very much.

  @TP-Link