How to Configure Load Balancer on Asus Routers

How to Configure Load Balancer on Asus Routers

Unstable or patchy Wi-Fi connection is a bummer. It is fatal if you cannot afford to be disconnected from the internet. If you find yourself in this situation often, it makes sense to get a secondary internet connection as a backup. However, switching to the secondary connection every time you face a downtime eats up too much time and defeats the purpose.

How to Configure Load Balancer on Asus Routers

If you own an Asus Router (such as the Asus RT-AC68U) capable of handling multiple WAN connections (Dual-WAN routers), it’s best to configure the load balancer mode. Load balancing on routers has several advantages. Firstly, it evenly distributes the load, making it easier to optimize Internet traffic routing across connected devices. Additionally, load balancing ensures uninterrupted traffic flow by rerouting it if a single connection goes down. Now let’s see how to configure load balancing on Asus routers. You can set up the secondary connection as an Ethernet connection or use a USB tethering device, such as a phone or a 4G modem.

How to Configure Load Balancer on Asus Routers

If you’re experiencing the former case, you’ll need to use one of the LAN ports for the secondary connection.

How to Configure Two Ethernet Wired Connections as Load Balancer

Connect the primary Ethernet cable to the WAN port and the secondary Ethernet cable to one of the LAN ports. Note down the port number.

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Step 1: Log in to the router interface using your admin username and password. Select WAN from the left menu to open the WAN home page.

How to Configure Load Balancer on Asus Routers

Click on the Dual WAN tab.

How to Configure Load Balancer on Asus Routers

Step 2: Toggle the switch labeled Enable Dual WAN. You can now choose the primary and secondary WAN options.

How to Configure Load Balancer on Asus Routers

To set your primary connection, click on the Primary WAN drop down and select WAN.

How to Configure Load Balancer on Asus Routers

Step 4: Set your secondary connection by selecting Ethernet LAN from the Secondary WAN dropdown. Then, choose the LAN port that the cable is connected to.

How to Configure Load Balancer on Asus Routers

Step 5: Once you’ve done that, load balance and specify the balance configuration.

How to Configure Load Balancer on Asus Routers

Specify a load ratio that corresponds to both channels’ bandwidth. Note that load balancing does not distribute packets, but rather spreads connection attempts between WAN1 and WAN2.

If both connections have the same speed, a 1:1 configuration will enable 50-50 balancing. This works best when both connections are equal. Otherwise, you can set it up as 3:1.

In this case, if you need to download five files, the first three and the last one will go through the primary WAN, while the fourth one will use the secondary WAN.

How to Configure Load Balancer on Asus Routers

Once you configure the load balance ratio, click Apply. Congratulations! You have configured a load balancer on your Asus router.

Configuring the Secondary Internet Connection

Before configuring your secondary connection, contact your ISP to determine the type of Internet connection (PPIP or PPPoE).

How to Configure Load Balancer on Asus Routers

If you know, go to WAN on the left menu and configure the Internet connection settings.

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Load Balancer is most effective for evenly distributing the load across WAN1 and WAN2. However, if one of the connections frequently experiences downtime, load balancing becomes impractical due to the significant delay in routing traffic. In such cases, Fail Over is the better option.

Fail Over always uses the primary connection and only switches to the secondary connection if the primary connection fails. Ideally, you can assign the faster connection to WAN1 and keep the slower connection as a backup.

How to Configure Load Balancer on Asus Routers

If you choose the Fail Over mode, specify the interval and fail over detection time. The router will automatically detect the network status by periodically sending DNS queries as per the specified time.

Bonus Tip: Using Your Phone as a USB Tethering Device

As mentioned above, you can set your Android phone or 4G modem as a secondary connection. To do this, follow these steps:

1. Select USB Application from the left panel and choose the 3G/4G option.

How to Configure Load Balancer on Asus Routers

Step 2: Select WAN from the drop down and enable USB Mode.

How to Configure Load Balancer on Asus Routers

Step 3: Select Android phone from the dropdown. Connect your phone to the router with a USB cable.

How to Configure Load Balancer on Asus Routers

To make your phone a hotspot, go to settings, search for USB tethering, and enable it. On Samsung phones, you can find this option under Settings > Connections > Mobile and USB Tethering. After enabling it, hit Apply. It’s that simple!

The scope of a router significantly increases when the Dual-WAN mode is used. In our case, it has worked exceptionally well. Previously, having independent connections resulted in an uneven load distribution. While I got around 850Mbps on the primary connection, my colleague only got around 100Mbps on the secondary connection. With this setting, both our speeds now hover around 600Mbps. Neat, right? Next up: Setting up Asus routers for uninterrupted gaming and Netflix streaming. Read on to find out how.

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