Hi @Alexandre. The others maintain as Ethernet Backhaul.

fhreis wrote

Hi @Alexandre. The others maintain as Ethernet Backhaul.

  @fhreis 

If you have something else wired to that same switch, would you please do the following test for me:

1. Power off all Satellite Deco connected to that switch, including one that reports WiFi backhaul.

2. See if that other wired to the switch device still has Internet access.

  @Alexandre. Sorry by the late response. 
During this weekend I did some new tests, an, despite the cable seems to be OK in others appliances, I changed the RJ45 connector and the problem was solved.
Thank you for your attention in trying to help.

  @TP-Link 

  @TP-Link 

You wote:

1.Temporarily the switch and connect the satellite Deco to the main Deco 

..

Its not clear temporarily the switch, do what with it !.

...

I have connected my Internet to

tplink switch

8-port gigabit

tl-sg1008D 

Supports IEEE 8

The main deco works fine and 2 other decos around it. 

I have 1 deco on diffrent floor

Picking very weak signal from the main deco

I connnect Ethernet net cable to it

No diffrent

Please support

  @Alyassi 

i presume it was ' bypass'. 

I must've bypassed typing it in.

I have 3 Deco S7 (Wi-Fi Mesh Dual-Band AC1900 Deco S7, V 1.20) and I'm trying to backhaul. Reading on some other forums, apparently it would need a switch to work, so I bought the tp link LS1008G V3 switch, and even so, the backhaul doesn't work. 
 

The current setup is :
Modem > Main Deco (which is on the first floor) > Switch >Deco (Slave 1, which is on the second floor)
 

Disclaimer: I'm using CAT 6
 

All this via ethernet, I have another deco (Slave 2) which is connected via wifi. Even connecting via cable, the deco refuses to change the type of connection, it shows that it is connected via wireless (even the one connected to the switch).  I intend to run a cable from Slave 2 to the switch to do a complete backhaul. I would like to know if at some point there will be a feature to manually change the connection type (from wireless to ethernet) between the decos.
 

I've also tried direct connection between decks, i.e:

Modem > Main Deco > Slave 1 

And even then, the backhaul didn't work, even though it said on one of the support pages that it would work regardless of the deco model (or at least, it didn't say that it would work on a specific deco model). 

 

Update (18/02/2024): I bought the Tp-link Ls1008g Gigabit 10/100/1000 Swtich and set it up as follows:

Router > Main Deco > Switch > Deco (Slave 1) , etc.

But the problem I noticed is: When I connect the switch, my internet from the main deco is limited to 100 MB/s, and when I remove it, it goes back to 1 GB/s. 

https://www.tp-link.com/en/support/faq/1794/