Accepted WAN/LAN auto-sensing
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 the cable modem failed to provide an 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 fails to assign an IP address for the main Deco, once the cable modem recovers, 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 the WAN post on the Deco APP later.
The following models already support fixing the WAN port:
| Deco X80-5G Deco X50-5G Deco X20-4G Deco X50/X55_V1/V1.2 Deco X20/X60_V4 Deco X60_V3/3.2/V4.2 |
1.11.0 Firmware Platform Understand the Differences Among Deco Firmware Platforms
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Sadly a quick solution is to replace the tplink devices with ones that do not need an active cloud connection. Tplink haven’t listened to users concerns on this issue for over 4 years now.
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@Diabl0 sadly an extra router doesn't help. The tplink decos seem to need the cloud service - not just an ip address.
I have added an extra router and my system still fails if the isp has a issue. I am replacing all my tplink stuff with open source based routers and access points.
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@Jord_S I get that quite frequently. Do you use ethernet backhaul? For me I think it's due to a network loop, some of my devices should use ethernet backhaul, but occasionally a unit at the furthest point to the base unit decides to wifi connect to the base unit via wifi, that messes up the units in between and kills the internet connection.
I switch off the one causing trouble, reboot the whole mesh, wait a while, restart the troublesome unit.
It's really not ideal!
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@TP-Link since yesterday I lost all connection to wired devices connected via tp-link switch to deco x50-PoE (3-pack) used in router setup. I've been trying for hours rebooting, reconfigurating and reconnecting/changing cables. Sometimes the wired devices pop up for a short while and move about between access points, but no connection is made. My whole smart home setup is useless this way. Can anyone please help with how to solve this? I'm only getting more frustrated by reading this thread and by what appears this issue isn't taken seriously by TP-link.
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@BrianThoms It looks like you can have a non-working system ALL the time or only when the WAN is down. Not much of a choice is it?
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@Ronix73 Unfortunately this solution does not work either. As soon as the WAN link to the router drops, the Deco mesh network drops.
There is NO SOLUTION other than to buy a new mesh system taht works as it should.
When you also add that the US and Australian governments are looking to ban TP-Link products due to allegations of spying through their devices, this is a good case to remove ALL TP-Link devices and buy elsewhere.
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@TP-Link Found a firmware update 1.4.0 Build 20240718 Rel. 44385 - seems to have a fix for this and allows to set WAN port. However, since installing it the router seems to lose connection intermittently. I have tried restarting/rebooting system still occurs. doesn't appear to be ISP dropping but router dropping. Appears to maybe be a bug in this new firmaware.
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This is a BUG! Needs to be resolved ASAP.
Deco X55 on latest firmware STILL does not have the option to disable auto sensing.
It is inconceivable that a LAN network is impacted by WAN access availability.
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@TP-Link Very Dissapointed. It's 4 almost years. I am long time TP-Link user. I will never us TP-Link again.
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