@Filipe_I.T Do you tick "enable load balance" ? If you combine this tick with failover setting, highly likely it will shut down backup wan if primay wan useable.

@Andone Thank you for helping me to understand, wish you all the best

@Andone Thank you very much...

@Yos I tried copy mac adress from computer to WAN2.....but after that config, the computer not able to connect to ISP at all. Please help.

Hi, my load balance works well. But when I cut power or restart device....the WAN-2 always disconnect. I must hit "save" or "connect" button at WAN setting. What should I do so the device can work...

@Andone What is the tick "efficient router" impact on operation?