Deco M9 Plus with Ethernet Backhaul is working very slowly

Deco M9 Plus with Ethernet Backhaul is working very slowly

Deco M9 Plus with Ethernet Backhaul is working very slowly
Deco M9 Plus with Ethernet Backhaul is working very slowly
a week ago - last edited a week ago
Model: Deco M9 Plus  
Hardware Version: V2
Firmware Version:

I have a 1Gb internet connection plugging into the Main Deco. The Main Deco speed test tells me that my internet connect is about 700Mb/s using the Deco App. I know my internet connect is 1Gb/s as this is was SamKnows Real speed confirms by testing my router directly.

 

From the Main Deco an ethernet cable connects to the Kitchen Deco.

 

From the Kitchen, i use the 2nd port to connect to the larder.

 

From the Larder, i use the 2nd port to connect to the garage.

 

This way i have 4 decos M9 are connected via ethernet in series.

 

The ethernet back haul results in about an internet connection of just 120Mb/s when measured with my iphone 16 standing right next to the unit. If i go wireless and remove the ethernet backhaul - i get about 220Mb/s.

 

Why is the ethernet backhaul so slow and even slower then wired? I thought i should be getting near the 1Gb or atleast 75% of it.

 

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Re:Deco M9 Plus with Ethernet Backhaul is working very slowly
a week ago

  @RishiDS 

 

With Ethernet backhaul, you should be getting same speeds from Satellite Deco as you are getting from Main Deco.

 

If you power off all Satellite Deco and run speed test on iPhone 16 standing near Main Deco, what speeds are you getting?

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Re:Deco M9 Plus with Ethernet Backhaul is working very slowly
a week ago

  @Alexandre. i get nearly 650Mb/s. But with the backhaul as i move to each Deco satelite unit it drops to about 90Mb/s. if i remove ethernet and go back to wireless backhaul it goes up to 250Mb/s

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Re:Deco M9 Plus with Ethernet Backhaul is working very slowly
a week ago - last edited a week ago

  @RishiDS 

 

650Mbps is what you should be getting from M9 Plus.

 

I am starting to suspect Ethernet cables. Ethernet standard is gigabit, followed by 100Mbps. If you are getting speeds close to 100Mbps, that hints at Satellite Deco negotiating 100Mbps over Ethernet cable, instead of gigabit it should. That usually points at issue with Ethernet cable.

 

I suggest to try different cables between Satellite(s) and Main Deco and see if it helps. 

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