Deco M9 Plus LAN Port stopped working
I am a proud owner of the 3-pack Deco M9 Plus, which I just setup in my house less than 2 days ago.
I updated most WiFi devices (now 17 and still counting) around the house to connect to the Deco, and all have worked superbly. No more blackspots everywhere I checked too. And no connections dropped so far, as far as I am aware.
In addition to the WiFi devices, I do have a couple of computers as well as a NAS at home that are connected via LAN, where I used to connect my old d-link router to a switch (fairly old tp-link 8-port 10/100Mbps switch) for that purpose. When I connected the 2nd LAN port from the main Deco unit to the switch, everything worked fine as well.... until yesterday evening when I realized that the connected devices no longer have internet connection. The Deco status light is still green (on all 3 units), and all WiFi devices connected to the Deco still work fine.
I tried looking within the Deco app to see if there is any reported status of the LAN port, or whether there is an option for me to disable and reenable the LAN port, but could not find anything.
Wonder what may be wrong.
I plan to, but have not tried the following:
1) Restart the main Deco unit.
2) Connect my wired devices to one of the Satellite Deco units (I am using wireless backhaul, so both satellite units have both LAN ports available).
Any other things I should try?
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I have the same issue with LAN port on a satellite deco. Wireless works fine but LAN doesnt work until i reboot.
I emailed support to troubleshoot.
My setup is
ISP -> Modem -> Main Deco -> TP Link switch -> Satellite Deco -> Netgear switch -> PS4
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I know it is just the LAN port on that device because
1) the rest of the network is working
2) I have cameras that are close to that device that uses wifi and they didnt report any disruption.
I reboot the satelitte deco from the app and only the satelitte deco. Havent touched the main deco yet since i dont want to interrupt the entire network
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There is currently nothing that lets you disable or re-enable the LAN on the Deco units. While its always possible the ports may be bad the simplest way to determine this is swap a satellite unit with the main unit and try connecting your ISP modem to each port (each port is cable of being LAN or WAN on the main unit). If the service comes online on each port than the Ethernet is fuctioning properly on that unit. You can follow this method of elmination on each subsequent Deco unit until you have tested all. If you confrim the LAN ports are working properly more indepth testing may be requeired.
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I have same problem that the Deco M9 that the lan will random stop working and require reboot to make it work again but wirelesss don't have problem i'm try to switch lan port between too i don't see the different still happens from time to time
My setup is Modem -wired -> deco m9 - wired -> Deco m9 - wired -> Tp-link hub
The hub is work fine because i test with other router no problem this only make me go crazy with Deco M9 that i'm invest , I hope the next firmware fix it
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Has there been any resolution to this issue? I have been happy with the M9 solution but now find that that my tp-link switch is flakey (connected to a satellite). Internet connections to the switch drop after brief connections. It seems simple enough to troubleshoot this problem.
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Same issue with me
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I had Deco M9 Plus purchased from Costco for several months now. Firmware Version: 1.3.0 Build 20190821 Rel. 54023
Had experienced LAN network suddently stops working, while WAN connections are still up.
My setup is: Modem > Deco M9 #1 > TP-Link Switch > [PC | Printers | TP-Link Switch] > Deco M9 #2 > TP-Link Switch | TV | PC > Deco M9 #3
My suspicion is that Deco LAN IP gets reset to 192.168.0.1 somehow. At least that's what I noticed after power cycling it. I did not check it before performing the steps below:
1. Powering off Deco M9 #1
2. Disconnecting LAN cable from it
3. Powering if on
4. After light goes Green, reconnecting LAN cable
5. Change LAN IP back to what it was. In my case I use 192.168.24.x
Deco is connected to UPS and there was no power outages.
This is very frustrating issue as it impacts stability of the network. This appears to be completely a firmware defect. Like the product otherwise, but will be returning it unless it is resolved promptly.
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I have the same issue. Entire WAN works fine. There are 2 computers connected with satellite Deco units. They work fine for a while and then suddenly stop working. No amount of network trouble shooting, cable disconnect, satellite deco reboot fixes the problem. I don't want to reboot the entire system
Did it ever get resolved or this has been an issue for more than a year with no fixes?
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