Fail over WAN 2 and WAN1 does not work when the cable is connected to WAN device

  • What I have noticed that when I disconnect WAN1 or WAN2 by unplugging the cable directly from the pfsense box it switches to other connection just fine, in other words if I bring the link down physically from the pfsense box the WAN fail over works however if I disconnect the cable from my cable modem by keeping the link alive between modem and pfsense without cable modem being online the fail over switching fails.

    I have tried with monitor IP and without Monitor IP but no use.

    I guess since the link is up between the pfsense and the cable modem so it just keep resolving the DNS however it should work by switching to the other link.