Failover not going back to primary WAN
Hello, I am trying to setup failover on my ER605 but the way it is setup, I see traffic only going through the secondary WAN. The setup is as follows : I have a local building WAN coming to the WAN port with a static IP, and a 4G router going to the WAN/LAN1 port that should be setup as failover to only take place when the WAN fails. I don't have much things set up on the ER605 since it is mostly used for this specific purpose, so I disabled the load balancing, and set up the failover rule to WAN primary, WAN/LAN1 backup, and "Backup when all primary WANs fail " and this rule is correctly enabled. I have setup the online detection to ping 8.8.8.8 and it works correctly, they appear online when they should and offline otherwise.
However, even when the WAN appears as online, and is effectively online, my traffic still goes through the other route. Whenever I tracert to random services (google.com, youtube.com etc.) I see that the traffic don't go through the local IP but my 4G IP, and I see that my public IP is also the 4G IP which should not happen.
Here are the verification steps from the FAQ :
The second step gives the correct results depending on which WAN is connected (I have public IPs showing so I won't show the screenshots).
Here is the online detection when I have both connected :
Putting the wrong IP in WAN effectively fails over to the WAN/LAN1. However, when putting back the correct IP to the first WAN, it does not fall back to it. When monitoring the traceroutes and my public IP I get the 4G IP instead of my local IP which is considered "link UP" in connection status.
Just in case, the load balancing is disabled.
Could you help me pin down what is the potential issue with my configuration ?
Hi Jambon,
I seem to have the same issue. I just installed a ER605 2.0 and was doing the configuration like in the screenshot.
Pulling the cable of the NBN modem resulted in falling over to the back-up WAN link with the 10 seconds (custom setting) but it never falls back to the primary line even after the NBN modem has re-established the primary WAN link 2-3 Min minimum). As a work around I then switch of the back-up 4G Router and then it falls back to the primary WAN. That should happen according to the settings within 10 seconds as well but doesn't. it stays and consumes the 4G data for wrong reasons.
It would be good to get an answer for TP-Link directly.
Thanks
MBE
