What happens when the primary WAN link fails under the basic failover option?

When the primary WAN link fails and the basic failover option is configured, the secondary WAN link takes over. This automatic switch to the secondary link ensures that the network remains operational without manual intervention. The primary purpose of implementing failover mechanisms is to enhance network reliability and continuity by providing a backup pathway for data traffic.

In this scenario, the secondary WAN link is already established and configured to handle traffic when the primary link is no longer available. This process is designed to minimize downtime and maintain connectivity for users or applications relying on the network.

Other options are not applicable in this context; blocking all traffic would disrupt connectivity entirely, while rerouting only critical traffic would not fulfill the purpose of failover which is to provide continuous service through the secondary link. The mention of a factory reset is irrelevant to the failover process, as it implies a complete reconfiguration of the device rather than ensuring uninterrupted service.