[Troubleshooting] Ethernet/PLC Backhaul not active

[Troubleshooting] Ethernet/PLC Backhaul not active
[Troubleshooting] Ethernet/PLC Backhaul not active
2021-07-27 03:04:23 - last edited 2021-08-09 06:16:46

This Article applied to:

All Deco models

 

Ethernet Backhaul is not active

There are several typical network topologies:

Case 1

Main Deco---network switches---other satellite Deco

  

Or Main Deco---powerline 1~~~~powerline 2---satellite Deco

Troubleshooting Suggestions:

1. Remove the switch/powerline and connect the satellite Deco to the main Deco directly. If the Ethernet Backhaul is active immediately, please check whether your network switch/powerline supports IEEE 1905.1 protocol or not.

Refer to Q4/Q5 in the below FAQ for more detailed explanation:

General questions about Ethernet Backhaul feature on your Deco

2. If the switch/powerline is confirmed IEEE 1905.1 protocol supported, please leave the model number of the switch here.

3. If you are using the TP-Link switches, login to the web UI of the switch, go to Monitoring > Loop Prevention to Disable the Loop Prevention:

 

Case 2

Main Deco---Ethernet---satellite Deco 1---Ethernet---satellite Deco 2

Troubleshooting Suggestions:

1. Change the Ethernet cable between the Deco nodes.

2. Swap the location of the satellite Deco nodes to confirm that the issue is not caused by a specific Deco.

If the issue persists, comment below with the following information:

--What kind of Ethernet cable do you use, like UTP Cat5e?

--How long is the cable?

 

Case 3:

ISP main router (with 4 LAN ports) ---all Deco units wired to the main router (Deco in AP mode)

Troubleshooting Suggestions:

1. Change the Ethernet cables from the main router to the Deco nodes.

2 . Connect one of the satellite Deco to the main Deco directly to check whether the Ethernet Backhaul will be established, such as ISP main router—main Deco—satellite 1.

---If the Ethernet Backhaul is active this time, please comment below with the model number of your main router.

 

PLC Backhaul is not active

The PLC Backhaul only takes effect when the whole house is under the same electric circuit and the main Deco needs to support Powerline Backhaul.

How to check whether the PLC Backhaul is active or not? Check the Signal Source on the Deco app as follows:

Troubleshooting Suggestions:

1. Make sure the main Deco is Deco P9 or Deco P7.

2. Use the original power adapter.

3. Plug the satellite Deco in the same room as the main Deco and make sure it is plugged into the wall outlet directly. 

Comment below if PLC backhaul still fails after the above suggestions.

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5 Reply
Re:[Troubleshooting] Ethernet/PLC Backhaul not active
Monday

@TP-Link hi, can you clarify how the 3rd AP on a P9 connection should show?

 

I'm asking because I have 3 P9's, setup on a 3-floor house. I have 1 P9 p/floor, my P9 on the 3rd floor when I go to signal source It shows the "2.4 GHz/5GHz - PLC" but the signal source says it's coming from the P9 on the 2nd floor. My primary P9 is on 1st floor, since it's a plc system and it shows connected using PLC, shouldn't the source be the main P9?

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Re:[Troubleshooting] Ethernet/PLC Backhaul not active
Yesterday

@Brain_Killer 

Hi, thank you for the feedback.

It is quite unexpected and can I have screenshots about the 3rd Deco P9?

If possible, could you please log into the web UI and send me a picture of the network map?

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Re:[Troubleshooting] Ethernet/PLC Backhaul not active
Yesterday

@TP-Link 

 

Portal

 

 

Mobile App

 

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Re:[Troubleshooting] Ethernet/PLC Backhaul not active
20 hours ago

@Brain_Killer 

Hi, Thank you very much for the detailed pictures.

After checking with the senior engineer, it turns out the signal source here only displays the wireless signal source when wireless backhaul and PLC backhaul  are both active.

But for the P9, the signal source of PLC backhaul is the main Deco P9.

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Re:[Troubleshooting] Ethernet/PLC Backhaul not active
16 hours ago

@TP-Link Thanks for the reply.

 

Is there any plans to update the GUI on the app to reflect this? Right now is confusing to understand how the P9's are setup/working as you can see from both images...

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