I have a TL-R470T+ and my primary goal is to use it for the fail-over purpose. It seems like the device is of no use.

I have two WAN connections and I have configured the router for fail-over.

Whenever my WAN1 internet is down, the router doesn't fail-over to WAN2. The fail-over only works when the WAN1 port is down but not when the actual internet.

In other words, this device is just monitoring the port but not the actual internet which makes no sense. There must be some kind of SLA monitoring solution else the fail-over will never occur unless you switch off your WAN1 router or disconnect the WAN1 port.

TP-Link, correct me if I am wrong, and kindly do not mislead your customers.

Thanks