Deco M4 capped at 250 Mbps

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Deco M4 capped at 250 Mbps

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Deco M4 capped at 250 Mbps
Deco M4 capped at 250 Mbps
2022-05-25 20:58:59
Model: Deco M4  
Hardware Version: V2
Firmware Version: 1.5.4

Hi!

My ISP offers 500 Mbps but no matter what I do I get around 250Mbps through 5Ghz Wi-Fi for my main Deco M4R. I removed QoS, Parental Control, and UPNP.

My setup is ISP > Main Deco > Secondary Deco.

 

I get 500Mbps on https://www.speedtest.net/ when connected via cable to the main Deco.

 

Any help would be much appreciated.

 

Jarek

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Re:Deco M4 capped at 250 Mbps
2022-05-26 02:42:16

  @jtg 

Hi, could you please also check the link speed on the client when it is connected to the 5Ghz:

How to check the associated/link speed on a wireless client

And may I know the model number of the device that is used for the speedtest?

 

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Re:Deco M4 capped at 250 Mbps
2022-05-26 06:56:34

  @David-TP 

Hi!

Thanks for the response, I use Samsung Galaxy A52. It shows 433Mb/s in the Wi-Fi settings tab.

I ran the speed test again, I got 260Mb/s.

For a cross check I also used Dell Precision 5540 (Linux), it gave a similar result - around 260Mb/s.

 

Jarek

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Re:Deco M4 capped at 250 Mbps
2022-05-30 08:59:03

  @David-TP could you please advise?

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Re:Deco M4 capped at 250 Mbps
2022-05-30 11:14:37

  @jtg 

Hi, Sorry for the delay.

For Deco M4, the maximum link speed is 866m/s, but on the A52, the 5ghz link speed could only reach 433m/s, so  260ms out of 433m/s,  about 60% speed ratio.

The speed is quite acceptable considering the link speed. And if the link speed of A52 could reach 866m/s, the desired speed would be 350m/s-500m/s.

So the slow speed of A52 is limited by the link speed of the smartphone. I see the WLAN specification of A52, it is 802.11 a/b/g/n/ac as well so it could reach 866m/s.

In this way, you could check whether the operating system needs to be updated or will it get full link speed-866m/s when connecting to another wifi 5 router.

 

For the Dell Precision 5540, you could have a check of the link speed as well.

 

Thank you very much.

Best regards.

 

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