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Slow Wired speed (Deco AX3600)

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Slow Wired speed (Deco AX3600)

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Slow Wired speed (Deco AX3600)
Slow Wired speed (Deco AX3600)
2022-10-14 23:57:19 - last edited 2023-01-30 06:13:31
Model: Deco W7200  
Hardware Version: V1
Firmware Version: 1.1.0 Build 20220530 Rel. 38621

I have Comcast Gigabit service, and reliably get ~950mbps down / 40 mbps up when I connect a PC directly to the modem using an ethernet cable.

 

When I connect the same PC using the same ethernet cable to my Deco AX3600 router, download speed drops to ~ 400mbps.

 

When I connect the same PC using the same ethernet cable to my old TP-Link Archer AC1750 router, download speed is restored to ~950mbps.

 

Clearly something is not right with the Deco router's configuration. Any ideas?

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1 Accepted Solution
Re:Slow Wired speed (Deco AX3600)-Solution
2022-10-22 21:54:05 - last edited 2023-01-30 06:13:31

  @Heidi_Alp  - thank you, QOS was the problem. Another user guided me to finding the QOS setting, somewhat hidden in the Homeshield section. 

I

The problem was the QOS download speed was set at 600mbps, and my tests were showing 400mbps (wired). Maybe I edited it to that, but can't think why I would have.

 

After I disabled QOS, wired speeds are as expected: 950/25 mbps.

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Re:Slow Wired speed (Deco AX3600)
2022-10-17 05:52:17

  @barotropic 

Hi, the first thing on my mind is the QOS, and please make sure it is set to 1000/1000m/s download and upload.

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Re:Slow Wired speed (Deco AX3600)
2022-10-17 13:11:18

  @Heidi_Alp 

 

Hi -

 

Thanks for the suggestion. My understanding is that QOS is a premium feature inside a Homeshield subscription, which I don't have. So I would think my QOS settings are at default.

 

Also I have tested wired speed from 2 different devices - both are half the speed available on the old router.

 

In any case, I see no way to change a QOS setting in the app.

 

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Re:Slow Wired speed (Deco AX3600)-Solution
2022-10-22 21:54:05 - last edited 2023-01-30 06:13:31

  @Heidi_Alp  - thank you, QOS was the problem. Another user guided me to finding the QOS setting, somewhat hidden in the Homeshield section. 

I

The problem was the QOS download speed was set at 600mbps, and my tests were showing 400mbps (wired). Maybe I edited it to that, but can't think why I would have.

 

After I disabled QOS, wired speeds are as expected: 950/25 mbps.

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