Figure 4-3 WAN – Static IP

4.2.1.4Link Backup

Set the connection of WAN1 as the primary link, the connection of WAN 2 as the secondary link.

Choose the menu Advanced→Load Balance→Link Backup to load the configuration page. Select WAN1 as Primary WAN, WAN2 as Backup WAN, select the Failover mode as figure 1-2 shown, and then click the <Add> button to apply.

Figure 4-4 Link Backup

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TP-Link TL-ER5120 manual WAN Static IP