@TP-Link 

Hi
Thanks for your reply.
Where can I find the network optimization feature?

All our devices running at 2.4 ghz say that the internet is slow or no internet.

If I turn off the 2 extra Deco, and only have the main Deco running, then the connection is good with 2.4 ghz and there are no big fluctuations. '

I have been testing all over the house and i have signal all the time, but of course the connection gets worse the further i get away from the main deco.

When I turned on one of the extra Deco (Deco 2), the 2.4 ghz signal dies instantly.
I turned off the power to Deco 2 and turned on Deco 3, but same result, no or very little internet.

I have attached a floor plan so you can see my house and where I have placed the 3 Decos.

best regards Henrik

Hi
I have confirmed that I have received the email from you.

I've only had it running for under 14 days, but the problem has been there from the start.
I have attached speed tests on the normal network (2.4 ghz + 5ghz) and on our guest network which is only 2.4 ghz (the one who has problems with) The first 5 min on the 2.4 ghz network, I get nice results with about 80 mbps up and down. but after 3-5 min the connection gets worse. (it does not matter which deco I am connected to)
If I keep doing tests, I get pretty much only with poor or no signal. But suddenly a good test can come, after which the next test is bad again. It is a very stable network.
Before I switched I had a Router (from another brand) which had no problems with the 2.4 ghz network. The Router I have had to run for 4 years, with no problem (besides poor range).

I have maybe 4-6 units running at 2.4 ghz.

By the way, I got Fiber connection.

@TP-Link 

TEST RESULTS

2,4 ghz +5 ghz Wifi test result when connected to Deco 1 (Main)

A detailed image for this result can be found here: https://www.speedtest.net/my-result/i/4433992697

Test Date: 19 Feb 2021 07.53
Download: 417 Mbps
Upload: 387 Mbps
Ping: 5 ms
Connection Type: Wi-Fi
 

2,4 ghz +5 ghz Wifi test result when connected to Deco 2 (satellite)

A detailed image for this result can be found here: https://www.speedtest.net/my-result/i/4433961635

Test Date: 19 Feb 2021 07.20
Download: 220 Mbps
Upload: 218 Mbps
Ping: 9 ms
Connection Type: Wi-Fi
 

2,4 ghz Wifi (Guest) test result when connected to Deco 1 (Main)

A detailed image for this result can be found here: https://www.speedtest.net/my-result/i/4434003281

Test Date: 19 Feb 2021 08.04
Download: 0,066 Mbps
Upload: 0,375 Mbps
Ping: 10 ms
Connection Type: Wi-Fi

 

2,4 ghz Wifi (Guest) test result when connected to Deco 2 (satellite) (same result on the main deco)

A detailed image for this result can be found here: https://www.speedtest.net/my-result/i/4433974836

Test Date: 19 Feb 2021 07.33
Download: 0,061 Mbps
Upload: 0,564 Mbps
Ping: 14 ms
Connection Type: Wi-Fi

 

@Steenberg @TP-Link Hi, ai have the same issue.

Are there any solution? 

@GiuseppeB 

hi Giuseppe

I got a mail from TP-link support, saying that I needed to update the firmware ( se mail below)

And it worked 🙂

Tp support ;

Recently, there is a new firmware for Deco X20 V1.2:

https://www.tp-link.com/en/support/download/deco-x20/v1.20/#Firmware

Deco X20(EU)_V1.20_1.5.1_20210204

https://static.tp-link.com/2021/202103/20210311/Deco_X20_V1.2_1.5.1_20210204.zip

if possible, please try to download the firmware and log into the web UI via

http://tplinkdeco.net and manually upload the firmware.

2:

Same problems here. Heat pump and electrical var Charger doesent work on 2,4ghz net. These units Will be replaced by Asus or google.

@GiuseppeB me too on x90 ! 

@Eransolin and me too on m5... really annoying. I cant get the 2,4ghz to work at all. Not present when scanning wifi with in-app.