Accepted WAN/LAN auto-sensing
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Background:
There is a typical network topology:
Some users might notice that, once the internet service fails, they are no longer able to access the NAS server from the local network.
The cause of this Phenomenon:
When internet service went down and cable modem failed to provide IP address for Main Deco, both Ethernet ports on the main Deco would work as WAN ports to detect internet connection. NAS would no longer obtain an IP address from Deco.
Why do we use WAN/LAN auto-sensing on Deco?
For the Deco Mesh system, normally it would have more than 2 units and each unit has at least 2 Ethernet ports; It would be time-consuming and confusing to find out which port should be connected to the ISP modem. And supposing that the WAN port is fixed, once this port is broken, the whole Mesh kit would be useless.
Recommended Solutions:
- Given that the issue arises only when the ISP modem failed to assign IP address for the main Deco, once the cable modem recovered, the problem should be resolved. It is suggested to contact the ISP to restore the modem connection as a priority.
- The current workaround would be connecting the wired servers to the satellite Deco units, instead of the main one.
- And We have also implemented enhancements on certain models, ensuring that the WAN port remains constant as long as the physical Ethernet connection between the modem and main Deco is unchanged, even when there is no internet service from the modem.
- Moreover, It is also planned to support manually fixing a specific Ethernet port as WAN post on the Deco APP later. (Some models already support this feature, such as Deco X80-5G/Deco X20-4G)
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@Gaby49 have deco m4, same problem, new firmware has no solution of this problem, TP link products never more, waste your money
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Just had this issue myself. I was troubleshooting an internet outage and almost came to the conclusion that the main Deco's Ethernet interface had somehow exploded and taken my modem *and* my PC with it! At least I had a spare router to swap in and determine that this was not the case, which led me to Google and this thread. That spare router is now going to be the main router, and the Deco is being switched to AP mode, because this is unacceptable.
Deco X55, latest firmware. March 2023. Still NOT fixed. How?
There's no other router in the world that works like this, and there have been so many posts in this thread and others about people's entire home automation and/or media servers going down because of this problem. How is this not a priority to fix, especially when the solution is as simple as adding a configuration option to the UI? Absurd.
As others have said, this is losing you customers. When seeing such a glaring issue like this and especially seeing your complete failure to address it for months and months, people are just going to stop using your products.
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David-TP wrote
Hi, For Deco X50/X55 V1, it might be good news that the latest firmware 1.2.0 has optimized this working mode. Deco will not reselect the wan/lan port until the Ethernet WAN cable is re-plugged.
Best regards.
@David-TP This is a pointless mitigation. The first troubleshooting step for loss of internet, is re-plugging the WAN cable, or power cycling the router. This kicks it straight back into WAN sensing mode and we have the problem all over again. Just allow the user to manually set a fixed WAN port in the settings! It's that simple.
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Grud wrote
David-TP wrote
Hi, For Deco X50/X55 V1, it might be good news that the latest firmware 1.2.0 has optimized this working mode. Deco will not reselect the wan/lan port until the Ethernet WAN cable is re-plugged.
Best regards.
@David-TP This is a pointless mitigation. The first troubleshooting step for loss of internet, is re-plugging the WAN cable, or power cycling the router. This kicks it straight back into WAN sensing mode and we have the problem all over again. Just allow the user to manually set a fixed WAN port in the settings! It's that simple.
@Grud
That is very true. Troubleshooting 101 :(
As pointed out by @GaryParr almost ONE YEAR ago... port selection code is already implemented for IPTV functionality.
Just copy/paste this code and use it to WAN port selection... cmon TP-LINK!
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