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Very strange slow speed with Deco X20 only with some devices

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Very strange slow speed with Deco X20 only with some devices

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Very strange slow speed with Deco X20 only with some devices
Very strange slow speed with Deco X20 only with some devices
2021-05-26 11:35:59 - last edited 2021-05-26 11:39:53
Model: Deco X20  
Hardware Version: V1
Firmware Version: 1.5.1 Build 20210204 Rel. 50738

Hi,

Just installed a net with 3 X20 units connected to a router that has 500 Mbps download and 100 Mbps upload.

Using the Deco app I measure the net speed and I get 495.6 download and 100.2 upload which is the speed that the main X20 gets from the router (wired cabled).

I also have a Deco P9 (1.1.3 Build 20201228 Rel. 55057) connected to the Main X20.

 

My problem is the following:

Using a PC hard cabled to the main X20 i get full speed (500/100).

Using different wireless devices but with same wifi specs connected to the main X20 and with no further traffic in the network.

 

Examples:

I have a PC connected via wifi to the P9 (5 meters away from the main X20) and I get consistent 450/100

When I test my Huawei P30 Pro in the same spot I get sometimes 400/100 and others around 120/100 (??)

 

With a Huawei Smart Z directly connected to the main X20 I never get more than 120/100 but often get 60/100. Connected directly to the router (no Deco) this device gives 400/100.

The next second in the same spot my P30 shows 450/100 

 

But if I change to any of the 2 connected X20 (both connected to the main X20) I do not get NEVER more than 120/100 but frequently around 60/100 with any phone or pc.

 

All the satellites are at no more than 6 meters from the main X20 and only with one wall separating them.

The main X20 is located in the center of a imaginary watch. One X20 is at 2 o'clock, other X20 is at 5 o'clock and the P9 is at 7 o'clock.

The P9 behaves much better thand any X20.

 

What is the problem? Shouldn't I have at least 400/100. 

One thing is sure... the upload is consistently high in every device and every time.

Sometimes I get speeds of 3 / 100 with no traffic in the network.

Help, please.

 

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Re:Very strange slow speed with Deco X20 only with some devices
2021-05-27 11:40:41

@Mendonca 

Hi, 

Were all the satellite Deco units wireless connected to the main Deco X20?

Could you please also check if all the signal source is the main Deco?

And except for the TP-Link Deco units, you also have another router, right? Did it connect before the Deco and work as a wireless router as well, such as:

ISP--previous router(router mode)--main Deco X20(router mode)~~~<Wi-Fi>other 3 satellite Deco units

 

The issue you are suffering is some mobile clients if connected to the P9, could maintain a suitable speed around 450/100;

While connecting to any Deco X20, even the main Deco X20, the speed is fluctuating from 120/100 to 400/100., most of the time on 120/100?

And the affected devices are Huawei P30 Pro and Huawei Smart Z; would there be any other devices?

---Would turning off the Mesh Technology on these devices make any difference?

Thank you very much.

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#2
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Re:Very strange slow speed with Deco X20 only with some devices
2021-05-27 12:18:23

@TP-Link 

 

Hi, 

Were all the satellite Deco units wireless connected to the main Deco X20? Yes. Just re confirmed that in the app.

 

Could you please also check if all the signal source is the main Deco? Yes, the source for each sattelite is the main X20 Deco.

 

And except for the TP-Link Deco units, you also have another router, right? Did it connect before the Deco and work as a wireless router as well, such as:

ISP--previous router(router mode)--main Deco X20(router mode)~~~<Wi-Fi>other 3 satellite Deco units

The router is what provides internet signal to the main X20 Deco via hard cabling and I've fully disabled the router 2,4GHz and 5 GHz WiFi emissions in order to not interfere with the Deco system. 

The connection speed between the router and the main Deco is excellent at 500/100. 

If I connect a computer to a ethernet port at the main X20 I also get 500/100.

 

The issue you are suffering is some mobile clients if connected to the P9, could maintain a suitable speed around 450/100;

No. Strangely the P9 is in my office and I have my computer and 2 mobiles connected to it and I get values between 450/100 and 150/100.

For instance normally I get in my P30 Pro speeds of 400/100 but now I only get 120/100. I disconnected all the Mesh system and activated the router Wifi and I get 450/100.

The Smart Z connected to the Mesh never goes beyond 120/100 but connected to the WiFi router it makes 300/100. And I mean connected to the main X20.

At home we have 6 phones, 3 notepads, 5 computers and all of them give good speeds directly connected to the router wifi but when connected to the Mesh system it all goes down. If connected to a satellite the best I can get is 140/100.

I've upgraded from 4 P9 to 3 X20 + 1 P9 but, if possible, now it's worst.

 

While connecting to any Deco X20, even the main Deco X20, the speed is fluctuating from 120/100 to 400/100., most of the time on 120/100?

And the affected devices are Huawei P30 Pro and Huawei Smart Z; would there be any other devices?

---Would turning off the Mesh Technology on these devices make any difference?

I think I've answered that above.... we also have some smart TVs but when we test I also insure that the other devices are not requiring bandwidth oer are disconnected.

All the computers have WiFi 6 protocol ax and go no further than 120/100 when connected to a satellite, except mine which is connected to the P9 and gets better speed. 

 

 

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