Official How to set up Ethernet Backhaul with your Deco devices
Ethernet Backhaul is a feature that makes it possible to wire the Deco units together.
Thanks to this feature, every two Deco units can be wired with an Ethernet cable. And Deco will transmit data between the two units through the Ethernet connection, which is more stable and faster than Wi-Fi. Once Ethernet backhaul is established, the Wi-Fi backhaul connection will disconnect automatically.
Here are two typical connection structures for Ethernet Backhaul:
Notes:
1. Please note that the main Deco unit will act as a NAT router by default.
2. Please add the Deco units on the same network at first through the Deco app before you wire them together.
3. Please make sure there aren't any other DHCP servers behind the main Deco. Otherwise, it will cause the second and third Deco units to obtain an invalid IP address that doesn't have internet access.
4. If you have switches on the network and find Ethernet Backhaul not working, please check the management IP address of your switches. It's possible that some switches adopt 192.168.0.1 (which is the same as the LAN IP address of the main Deco) as the management IP, which may cause some conflicts on the network. In this case, it's recommended to change the management IP address of switches to another subnet.
Frequently Ask Questions
Q1: Can I connect all the Deco units directly to my home modem/router?
* In Router mode
Only the main Deco could be connected to your home modem/router. Other slave Deco units should be connected behind the main one, just as the Star Network shows. If not, they may be in a network loop and cause unexpected dropout issues.
* In Access Point mode
You can connect all the Deco units directly to your home modem/router/switch as you want. The system will work as expected.
Q2: How to turn on the Ethernet Backhaul feature?
No need to switch on this feature manually.
Just add your Deco units in the same Deco network and wire them together as per the above network structure. Then Ethernet Backhaul will take effect automatically.
Q3: How do I know if Ethernet Backhaul takes effect?
Launch the Deco app, tap on "Internet". Then tap on the slave Deco unit which is wired to other Decos and you can see its backhaul status.
Q4: To use the Ethernet Backhaul feature, do I need to wire all my Deco units?
Nope. You can set up one for wireless backhaul, and the other one for Ethernet backhaul as what you want.
For example, if you have three Deco units and want to create Wi-Fi not only in your house but also in the garage, which is a little far from the house and without Wi-Fi coverage. Then you can put the main Deco and slave Deco 1 in your house (wireless backhaul). As for slave Deco 2, you can place it in the garage with a long Ethernet cable connected to the main or slave 1 unit. In this case, the slave 2 unit will work through Ethernet backhaul, while the main and slave 1 will work through wireless backhaul.
Q5: Why my Decos become unstable once they're connected via a switch?
It's probably that you're using a D-Link switch.
The Deco Ethernet backhaul feature is based on the standard IEEE 1905.1 protocol. However, we find that some D-Link switches will not forward packets based on IEEE 1905.1 protocol, causing all Deco units in a loop and become quite unstable. If you have a D-Link switch and encounter unstable issue with Ethernet backhaul, we recommend to change another brand of a switch or contact D-Link support directly for a fix.
If you're not sure which switch to use, TP-Link switches may be a good choice.
Q6: Can I set up Ethernet Backhaul through a powerline connection?
That's okay if the powerline connection doesn't block any data flow.
Typical topology is, modem ---- main Deco ---- Powerline unit~~~Powerline unit ---- slave Deco
Q7: Can I set up different Deco models such as M5 and M9 Plus together through Ethernet backhaul?
Yes, just configure and add different Deco models in the same Deco network. After that, you can wire them to set up the Ethernet backhaul connection.
You could refer to the link below for how to add different Deco models in the same network.
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TP-Link Deco wrote
Any news about my below setup review?
Backhaul not working , here is my setup :
Router <--------------->Switch <----------> Main Deco
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<(Port1)>Powerline< (Port 2)
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<(Port1)>Powerline< (Port 2)
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ISP Ethernet Deco #2
Hand off
Any thoughts?
Thanks
Samy
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BHi guys, sorry but I have last update lf the app and I cannot see if my decos M9 are connected properly with backhaul (please see screenshot of one of the decos with almost no info - in spanish: it is saying that one of the slave decos is working properly abd that’s all)
I have tried the update the firmware but the app says that the decos also are up to date
I’m missing something?
Thanks
image attached:
TP-Link Deco wrote
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It requires the firmware support as well. Deco M9 Plus will release the firmware which will show how Decos are connected in future.
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Why did you connect the first powerline unit to the router and switch at the same time? Seems it creates a network loop.
And which working mode do you set for the Deco system?
It will have problem if you set them in Router mode, because both the two Deco units are connected to the front-end router finally.
In Router mode, the remote Deco units should be connected behind port 2 of the main Deco.
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TP-Link Deco wrote
Why did you connect the first powerline unit to the router and switch at the same time? Seems it creates a network loop.
And which working mode do you set for the Deco system?
It will have problem if you set them in Router mode, because both the two Deco units are connected to the front-end router finally.
In Router mode, the remote Deco units should be connected behind port 2 of the main Deco.
Before i start , Decos are running in AP mode
- Powerline unit port-1(Carrying ISP L3 handoff) connects to to Router WAN port , meaning has nothing to do to the switch.
- Power line port-2 connects deco-2 to switch (totally different connection)
***** No loop while ISP handoff works perfectly (Via the same powerline deco doesn't!!) and my Internet works over Port-1 , however Deco doesn't see powerline as ethernet connection , not sure , why?!
check below picture:
Powerline carries ethernet frames only , just like a two port switch connected via Electricity.
Pls let me know.
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Excuse me for being a complete dunce but I would like a bit of help please.
I have an M5 3 x Deco system connected by Ethernet cables as follows:-
ISP Modem-------Main Deco-------TP-Link Switch--------Office Deco---------Bedroom Deco
Everything is online and working but no devices ever seem to collect wirelessly to the Bedroom Deco even when stood next to it.
Here are screenshots of the 3 devices, any help appreciated.
MAIN DECO DISPLAYS THIS
OFFICE DECO DISPLAYS THIS
BEDROOM DECO DISPLAYS THIS
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How much speed increase do you see when enabling ethernet backhaul?
my speed at the slaves are between 50Mbps and 100Mbps whereas the speed near the main can be 300Mbps to 500Mbps
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KENNETHOU wrote
How much speed increase do you see when enabling ethernet backhaul?
my speed at the slaves are between 50Mbps and 100Mbps whereas the speed near the main can be 300Mbps to 500Mbps
My Deco M5 ethernet ports are 1G , depending on how you connect the decos back then it'll determine.
I use ethernet backhaul over a 500Mbps powerline which is my max , if you connect via switch or 1Gbps capable device then you get much faster results.
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