My main internet connection is unreliable, so I currently using a failover to a LTE connection through a USB dongle using mwan3 on my router.
So, if I completely lose my main connection, it will failover to the LTE connection, and return (fail-back) to the main connection when it gets back.
But when I have problems with my main internet connection, I don't lose it completely, it gets unstable, but still works (barely). In this case, it will failover to the LTE connection, but returns to the main (unstable) connection a few moments later - which is something that I want to avoid - since this instability could last a few hours.
In the end, I would like to configure mwan3 to failover to LTE connection and NOT return (fail-back) to the main connection for one or two hours because I know it takes an hour or more for my main connection to get stable again.
I already tried to tweak a few settings on the MWAN3 interface configuration of my main WAN connection, increasing the failure interval and recovery interval to one hour. But after a failure, once it switches to the LTE connection, it will return to my main WAN soon after - something that I want to avoid.
I want to stay on the LTE connection for at least an hour to give enough time to my main WAN to get stable again.