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 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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@TP-Link Does anyone know if ANY models of the Deco have this issue / bug fixed?
I note that TP-Link do not even have the latest firmware 1.7.4 (AU) for the M5 Deco listed on their wesbsite. Too busy making money off later models to provide support to existing customers.
Still, the Orbo works and is MUCH cheaper than the TP-Link product.
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McMike wrote
Today i have made the slave deco the main and the main the slave in the app and switched locations, thinking maybe there was an issue with the main Deco. So far so good.
I've got a pair of M4 v1.0 that are wired backhaul to the ISP router. They've been great and up close can manage up to 400/400 up/down which is fast enough for my mobile devices.
However I recently added some Govee Wi-Fi lights that require LAN control for the Dreamview app on PC. They'd randomly drop LAN control, which requires multicast, with the mesh units but would stay solidly connected to the ISP router Wi-Fi albeit with a much weaker signal. That's when I discovered this issue.
So, I thought I'd try your suggestion of switching the mesh units main and slave. This has worked and I no longer have any more problems with Govee LAN control. Seems the mesh unit, in the pantry set as main, connected via ethernet directly to the ISP router causes an issue. Whereas the landing mesh unit set as main which goes through a switch then onto the ISP router doesn't with the pantry unit set as slave. Both are still using wired ethernet back to the ISP router just switched places as main/slave.
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Tosoth wrote
I got update for my Deco X50 yesterday. They added option to turn off Auto LAN/WAN sensing and set WAN port manually.
@Tosoth I use the latest version 3.7.74 of TP-Link Deco app for my Deco X50-PoE. Can't find the option to turn off Auto LAN/WAN sensing. Could you please advise where you found it in configuration menu?
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Hi, my Deco X50 firmware version is 1.5.1 build 20240417.
I have polish version but In english this option is probably in:
More / Advanced / WAN port
My Deco app version is 3.7.83.
I don't know if it's more app version or firmware version that matters.
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@Tosoth I do not have that setting in my version of the app (AU version .83).
My Deco devices are in AP mode. Is it possible that the option to set WAN / LAN autosensing is only available when Deco units are router mode?
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I don't know if it disappears in AP mode but it looks like this. I didn't test if it works correctly when WAN connection is off.
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my deco x75 pro are both access points only. I don't understand why there must be a main deco at all in that case. none is connected to WAN directly. both are connected over switch. I don't know why that must break local networks access when Internet is down. does not make any sense to me.
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@TP-Link I agree with the latest poster. It doe NOT make sense for TP-Link to leave this bug in their devices AND tell the customer they can suck it up or go elsewhere.
I have now switched to Orbi and Asus and find the support great and the product even better. Worth paying the extra few dollars folks!
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