WAN Aggregation combines two Gigabit networks to increase the bandwidth up to 2 Gigabits. When your ISP or LAN devices provide two network connection sources with LACP-IEEE 802.3ad (LAN Aggregation) support, you can use WAN Aggregation function in your ASUS router to get faster WAN transfer speed.
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Note1: Please note that the modem connected to your ASUS Router must support LACP-IEEE 802.3ad to make sure WAN Aggregation works. If you are not sure the front modem/router support LACP-IEEE 802.3ad or not, please contact your ISP.
Note2: WAN aggregation only support for Automatic IP and Static IP WAN connection type. If you are not sure the WAN connection type, please contact your ISP.
Note3: Please make sure the two WAN sources are from same ISP and same front modem/router.
The WAN aggregation supported by ASUS wireless routers vary by model, you may refer to the product user manual or the product specifications page to confirm if your router support WAN aggregation or not.