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Deco M4 second Ethernet port stop working when Internet is down

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Deco M4 second Ethernet port stop working when Internet is down

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

gmlupatelli

2023-01-10 15:12:17 - last edited 2023-01-10 15:18:13

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Deco M4 second Ethernet port stop working when Internet is down

2023-01-10 15:12:17 - last edited 2023-01-10 15:18:13

Model: Deco M4

Hardware Version: V2

Firmware Version: 1.5.5 Build 20220823 Rel. 41353

Hi,

I just setup my Deco network like the picture bellow.

The problem I am facing is that my Local Media Server, which is just an ARM64 computer running Debian, gets disconnected when the internet is down. I hypothesize that the Main Deco goes to Wan/backhaul listening mode when the eth1 gets disconnected from the internet.

I already switched the eth1 and eth2 ports, and I still have the same problem. Is there a way to force one of the ports to behave as a regular Ethernet port?

4 Reply

gmlupatelli

LV1

2023-01-10 23:56:31 - last edited 2023-01-11 00:11:27

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Re:Deco M4 second Ethernet port stop working when Internet is down

2023-01-10 23:56:31 - last edited 2023-01-11 00:11:27

Adding more info to the first post. The problem happens when I restart the Main router, during the time that eth1 is disconnected the main Deco break eth2.

Steps to reproduce:

Set up the Main Deco
Connect it to the internet using eth 1 or 2
Connect a computer to the other Ethernet port
Start transferring a file from the Local Media Server to another computer on the WiFi network
Disconnect the Internet (Wan) Ethernet cable or restart the Modem

What happens: When I do that the Local Media Server gets disconnected until the Wan connection is restored. WiFi devices are not impacted.

What I expect to happen: Local Media Server would keep transferring the file to the other computer on the local network.

David-TP

2023-01-11 08:04:47

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Re:Deco M4 second Ethernet port stop working when Internet is down

2023-01-11 08:04:47

@gmlupatelli

Hi, I think you are right and the current issue is very likely caused by the WAN-LAN Auto-sensing feature:

WAN/LAN auto-sensing

Is there any chance that you could connect the LAN media server to one of the satellite Deco M4?

Best regards.

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gmlupatelli

LV1

2023-01-16 03:23:31

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Re:Deco M4 second Ethernet port stop working when Internet is down

2023-01-16 03:23:31

@David-TP. It would be a major inconvenience as I don't have a dedicated location for it where the other Deco is. Is there any ETA for solving?

Alexandre.

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2023-01-16 16:37:26

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Re:Deco M4 second Ethernet port stop working when Internet is down

2023-01-16 16:37:26

@gmlupatelli

If your Main Deco connected to Router/Gateway (and not just to Modem), there is workaround.

Deco M4 second Ethernet port stop working when Internet is down

Deco M4 second Ethernet port stop working when Internet is down

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