Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices

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Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices

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Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices
Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices
2022-02-03 08:44:32 - last edited 2022-02-03 21:29:58
Model: Deco M9 Plus  
Hardware Version: V2
Firmware Version: 1.5.1 build 20210126 Rel.59387

LS

 

My internet model provides 300Mb/s throughput

When i do a wired speedtest directly after the main deco i get only 75Mb throughput

Same on any deco wired or wifi connect device downstream

 

Test scenarios

Internet router -> wired cat5e -> laptop = 300/30Mb (speed = same as internet subscription)

Internet router  -> wired cat5e ->  main Deco M9 ->  wired cat5e -> = laptop 75/10 Mb

Internet router -> wired cat5e -> main Deco M9 -> wired cat5e -> other Deco M9 -> Wifi = 75/10 Mb

 

Where is the bottleneck and how can it be solved?

 

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Re:Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices-Solution
2022-02-03 17:29:18 - last edited 2022-02-03 21:29:58

@Marcel.... after investigation it turned out to be one single old cat 5 cable somewhere hidden in the entire network.

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Re:Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices
2022-02-03 14:29:03
I have Deco M9 Plus, gigabit internet, and I am getting gigabit on laptop in wired test similar to yours. Change Deco to Access Point mode and run your tests again.
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Re:Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices
2022-02-03 15:53:37

@Alexandre. If i do that i loose the benefit of the deco router features and the m9 will simply turn into an independent access point. 

 

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Re:Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices
2022-02-03 16:50:19 - last edited 2022-02-03 16:50:59

 

Marcel.... wrote

@Alexandre. If i do that i loose the benefit of the deco router features and the m9 will simply turn into an independent access point. 

 

@Marcel.... 

 

This is correct. The purpose of this is to verify everything is OK with Deco hardware and your home network wiring. In Access Point mode, Main Deco becomes not much more than pass-through for wired traffic. If in Access Point mode you couldn't get 300/30mbps with laptop wired to Main Deco, that would mean hardware issues or wiring problems.

 

The tests I did with Deco in AP mode using my M9 Plus prove M9 hardware is capable of handling gigabit traffic.

 

After you completed that test, you can change Deco back to Router mode. It is also possible that switching to AP and back to Router mode could reset whatever bandwidth throttling settings you have in Deco, but if not - then you can just review documentation on Deco Router configuration, with absolute confidence that what you have is not hardware issue or wiring issue, and solution to speed problem is somewhere in Deco Router configuration settings.

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Re:Deco M9 incoming Internet speed 300Mb but Deco output limited to 75Mb on all my devices-Solution
2022-02-03 17:29:18 - last edited 2022-02-03 21:29:58

@Marcel.... after investigation it turned out to be one single old cat 5 cable somewhere hidden in the entire network.

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