@David-TP 

I'm also experiencing an issue where my Deco units are completely ignoring the connection preferences set in the app since updating to firmware version 1.8.1.

I have three Deco M9 Plus V2's running in Access Point mode. Two of them are connected via Ethernet to the main router. However, the third unit is not connecting to the preferred connection I set, it always connects to whichever Deco is designated as the "Main" deco, regardless of my settings.

I've tested this by placing the third Deco right next to the preferred unit, but it still insists on connecting to the "Main" Deco located on the opposite side of the house, resulting in a red signal. Even when I set the connection preference to "Auto," it continues to connect to the distant "Main" unit instead of the Deco it is sitting right next to.

When I downgraded to firmware version 1.6.4, the connection preferences work correctly again without any issues.

  @David-TP 

after this update i cannot run youtube on my Samsung NEO Qled 2024. prior it was no issue. 

also i have no QOS activated, which was a bug that should be addressed in this update.

i tried:

rebooting tv

rebooting Deco

this dit not change a thing. when running youtube on the samsung tv, the screen just turns black.

i can run youtube on my ps5/iphone/ipad without any issue.

please resolve this bug. 

i run three deco M9plus V2 with firmware 1.8.1

  @David-TP It's concerning that TP-Link engineers can't reproduce the issues, especially since multiple users with similar setups are experiencing them. It makes one wonder if they have access to the necessary hardware for proper testing.

  @David-TP 

Hello, I installed rel 56714 this morning and had big problems bringing the network back up. Ethernet backhaul appears to be disabled by default and some of the more remote decos will not reconnect to the mesh whatever I do. Fast Roaming is also disabled and can't be enabled.

I have 5 M9s in access point mode with a combination of mesh connection and ethernet backhaul. Usually firmware upgrades are problem free but this one was not.

On the main deco some combination of rebooting and switching the ethernet port eventually got it to recognise the backhaul but on another nothing will make it work. On yet another (without ethernet) it will not connect to the mesh even right next to another deco. I will perform a hardware reset on it shortly.

  @David-TP 

The network map is:

ISP Router -- switch/hub -- main deco

\ <wireless> -- satellite 1 -- <wireless> -- satellite 2

                                             \ --<ethernet>-- satellite 3

\ <ethernet> -- satellite 4

Satellite 2 will not reconnect. The Main deco doesn't have an ethernet symbol in the list but satellite 4 is connected so I guess it is working. Satellite 3 should be ethernet but is currently connected by wireless with a very weak signal (i would actually prefer this configuration but the signal is weak and not stable enough).

The switch/hub is a tplink SG105. I have swapped it for another unbranded chinese one and it seems to behave the same.

(The two ethernets are different powerline networks with tp-link adapters) 

I will submit the log now.

Update: while the wifi seems to be working ok (minus the deco that won't connect) the Android App always has the error "Can't connect to Deco" when it starts up, except I can click on each Deco and see its details and what devices are connected.

  @nickname125 i have reset the "satellite 2" deco and it still cannot be added to the network. Either in it's original position or next to the main Deco. The setup process seems to work, it says it has been added successfully, but it continues to show as offline in the app. Connecting it via ethernet seems to allow it to show as connected in the app but then Satellites 1 and 3 are shown as disconnected... however the wifi does appear to be working. Perhaps it is an app problem.