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 I've wasted so much of my time trying to figure out what I'm doing wrong until I can across this thread. Countless hours. Actively making sure nobody I know ever buys a tp-link product again. I have the most up to date firmware and this is still an issue. Currently looking for a good new router not made by tplink.
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@TP-Link Please fix this.
I have configuration: Internet --wire--> M5 --wire--> switch --wire--> M5
PLEASE ALLOW US TO SET A FIXED WAN PORT. Make that option Advanced if you want. But it's really unacceptable to lose LAN connectivity when internet goes down, it just doesn't make any sense.
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Just lost power due to tornadoes in SE Louisiana. Now due to TP-Link DECO, I've lost LAN connection to home camera system from the auto-sensing feature. I had to go get the satellite deco and bring it right next to the primary DECO unit and connect my cameras to it losing the WiFi for the other half of the house after learning through this thread.
How can a user during a weather emergency maintain their LAN connections when their ISP is severed from natural disasters? Please elevate the demand for dedicating a WAN port on the main DECO unit, and the rest LAN! This is vital to keeping watch on generators running that are a high target for theft! Looting is prevalent during hurricanes and cameras on LAN can alert home owners before trouble strikes!
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@TP-Link It has been a couple years waiting for this problem to be solved. Each time the ISP goes offline (let it be for internet outage or a power failure that sees the deco boot time faster than the isp router can connect to the internet) my decos become expensive paperweights. I have my main deco with a WAN cable and a LAN cable. The only way to restore internet conectivity after the ISP goes back on-line is someone going to the deco location, manually removing the LAN cable, wait for the deco understand that a port that was connected to it all along had internet and then reconnect the LAN cable.
This is unacceptable behavior that only exists because of this auto-sense "feature". All deco users should be able have this breaking bug fixed.
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My BE85 is leaking mac address of all LAN devices to ISP - suspect this is the same issue with port auto-sensing. Basically looks like the deco just creates a single Ethernet network instead of having two independent LAN/WAN networks. It's a big fail. Latest firmware (1.0.18). My ISP (Community Fibre in the UK) shuts down my connection frequently as they do not support more than 5 MAC addresses on the interface. TP-Link Support has raised internal proritised ticket ID TKID240554553.
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