Very slow wifi with deco p9

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Very slow wifi with deco p9

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Very slow wifi with deco p9
Very slow wifi with deco p9
2021-08-12 12:41:20
Model: Deco P9  
Hardware Version: V1
Firmware Version: 1.1.3 Build 20201228 Rel. 55057

Setup: Virgin 200M modem ---> Deco P9 (main mesh router)  ---> 1Gb switch

Two further P9s around house

 

Connecting Windows Laptop, or Chromebook via ethernet to switch gives Download speed of 182 Mbps, Upload of  20.53 Mbps. 

Excellent.

 

However,

Connecting same via WiFi gives Download speed of 20.99 Mbps, Upload of 21.67 Mbps.

 

Clearly, signal from Virgin is good. I've been through all the checks suggested elsewhere, but can't get the wifi signal to improve

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Re:Very slow wifi with deco p9
2021-08-13 06:36:59

@PeteClen 

Hi

Is the device connected to 2.4ghz or 5ghz? Please also check the link speed as well.

Would it be possible to connect the laptop directly to one P9 via Ethernet cable and check the speed?

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Re:Very slow wifi with deco p9
2021-08-15 13:19:34

@TP-Link 

5GHz

 

Using Chromebook:

Connection to remote P9 via Ethernet:  22.51 Mbps download, 19.05 Mbps upload

Connection to same P9 via WiFi: 16.62 Mbps download, 19.47 Mbps upload

 

Not sure how to get link speed on Chromebook. On android mobile phone, showing as 72 Mbps

 

So, as well as a mesh-wide WiFi issue, is there alo a problem with powerline connecting to remote P9s?

 

Grateful for any help you can provide! I'm happy to accept I've maybe set something up incorrectly, just can't figure out what! 

 

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