Turning an ASUS router into a WiFi hotspot

Using an old or spare router as an access point is one of the most effective ways to expand your home network's coverage without purchasing expensive mesh systems. ASUS router It's renowned for its stable firmware, which allows for flexible control of equipment operating modes. Users often encounter situations where the primary router doesn't reach a distant room, and a second device comes to the rescue.

Configuring your device to access point mode avoids double NAT, which is critical for online gaming, video conferencing, and torrenting. Unlike repeater mode, a wired connection ensures maximum speed and minimal latency. In this article, we'll cover all the configuration details so you can create a seamless network.

Equipment preparation and compatibility testing

Before you begin software configuration, you need to ensure that your hardware is physically ready to operate in the new topology. Most modern models Asus, including the RT, AC, and AX series, support mode switching at the firmware level. You'll need the router itself, which will act as a AP, and an Ethernet patch cable long enough to connect to the main router.

It's important to understand the difference between the physical connections in different modes. If you plan to use the device as a wired access point, the cable from the main router will be connected to the port. WAN (or Internet) of the device being configured, but only after selecting the appropriate mode in the interface. In older models or with the manual method, the cable may be connected in LAN.

⚠️ Important: Before starting any configuration steps, we strongly recommend performing a full reset on the secondary router. This will prevent IP address conflicts and old configurations that could interfere with the correct operation of the new setup.

Make sure you have access to a computer or laptop that can be temporarily connected to the router you're configuring via cable. The wireless connection may be lost during firmware upgrades or mode changes, which will interrupt the configuration process. Also, check that the main router is assigning IP addresses via DHCP server, since the access point will receive the address automatically.

Login to the web interface and initial diagnostics

To begin setup, connect your computer to one of the LAN ports of the ASUS router, which will be converted into an access point. Open any browser and enter the standard address in the address bar. This is usually 192.168.1.1 or domain name router.asus.comIf the address was changed earlier, use the command ipconfig in the Windows command prompt to find "Default gateway".

After entering your credentials (often admin/admin by default), you will be taken to the main page of the control panel. Interface ASUSWRT The appearance may vary depending on the firmware version, but the logic remains the same. The main network map typically displays the current connection status and the type of WAN connection being used.

The first step in diagnostics is to check the firmware version. Go to the section Administration or Administration and find the updates tab. The latest firmware version guarantees all modern security features and stable operation of the access point mode. If updates are available, it's best to install them before changing the operating mode.

Automatic configuration via Operation Mode

The easiest and most reliable way to switch devices is to use the built-in operating mode wizard. Find the section in the interface Administration (Administration) and go to the tab Opening hours (Operation Mode). Here you will be asked to select one of the options: Wireless Router, Access Point, or Repeater.

Select an item Access Point (AP) modeThe system will warn you that after applying the settings, the device will reboot and a new IP address will be required to access the web interface. This is normal, as the device will no longer function as a router and will become a transparent bridge.

After selecting the mode, click "Save" or "Apply." The router will reboot within 1-2 minutes. In this mode WAN port The device starts working as a regular LAN port, receiving internet from the default gateway. All wireless network settings (SSID and password) can be left unchanged or changed on the fly before saving.

Manually setting the IP address and disabling DHCP

If automatic mode isn't suitable for some reason, or you have a specific network configuration, you can configure the access point manually. To do this, leave the "Wireless Router" mode, but change the key settings. Go to the section Local area network (LAN) -> IP address.

You need to change the IP address of your ASUS router so that it is in the same subnet as your main router, but not the same. For example, if your main router has an address 192.168.1.1, then ask ASUS 192.168.1.2This will prevent address conflicts on the network.

The next critical step is to turn it off DHCP serversFind the corresponding section in the LAN menu and select "None" or "Disable." There should only be one IP address-distributing server running on the network (your primary router). Leaving DHCP enabled on both devices will cause conflicts and prevent them from connecting to the internet.

After applying the settings, the router will ask you to reboot. Now you need to plug the cable from the main router into the port. LAN (Not WAN, unless you're in AP Mode; LAN-to-LAN is often used in manual mode) so that the devices are on the same local network. However, newer ASUS firmware often recommends using the WAN port when using the manual method if DHCP is disabled, but the safest way is LAN-to-LAN when using the manual method.

What should I do if I lose access to the interface?

If you've changed your router's IP address, access to the old address (192.168.1.1) will no longer work. You'll need to enter the new address you set (e.g., 192.168.1.2) into your browser's address bar. If you've forgotten the new address, you'll have to reset it using the Reset button.

Wireless network configuration and security

Now that the network portion is configured, it's time to optimize Wi-Fi performance. Go to the section Wireless network (Wireless). Here you can set the network name (SSID). To achieve seamless roaming (though this isn't true 802.11r/k/v roaming without AiMesh), it's recommended to set the same network name and password as your main router.

However, there's a caveat with channels. To avoid interference, the wireless channels on the main router and access point should not match. For the 2.4 GHz band, use channels 1, 6, and 11. If the main router is set to channel 1, select channels 6 or 11 on the ASUS access point.

In the security section, select the encryption protocol WPA2-Personal or WPA3, if all your devices support it. Using legacy WPA/TKIP protocols can significantly reduce the speed of the entire network, as it switches the access point to promiscuous mode.

Advanced ASUS AiMesh settings and features

The technology is worth mentioning separately. AiMeshIf your main router and ASUS device support this feature, it's better to use it instead of classic access point mode. AiMesh creates a unified, manageable network with automatic client switching between nodes, which is much more convenient than manual setup.

If you are using the classic AP mode, pay attention to the feature Media BridgeIt allows devices without Wi-Fi (such as a Smart TV or gaming console) to connect to a wireless network via the access point's Ethernet port. This turns the router into a wireless client for the specific device.

⚠️ Note: ASUS firmware interfaces may vary depending on the model and region. If you cannot find a menu item, please check the official user manual for your specific series (RT, N, AC), as the location of the DHCP and operating mode settings may vary.

You can also adjust the transmitter power in the advanced wireless network settings. If the access point is close to client devices, reducing the power to 75% or 50% can reduce noise and improve connection stability, preventing clients from becoming stuck on a distant router.

Frequently Asked Questions (FAQ)

Can I use my ASUS router as an access point without a cable?

Yes, this is possible in "Repeater" or "Media Bridge" mode. However, the speed in this mode will be lower than with a wired connection, as the radio module is both receiving and transmitting data. For maximum performance, a cable connection is recommended.

Why doesn't the internet work on devices connected to the hotspot after setup?

You most likely forgot to disable the DHCP server on your ASUS router (during manual setup) or specified the gateway incorrectly. Make sure the IP addresses are being assigned by the primary router, not the secondary one. Also, check that the cable is connected to the correct port (LAN or WAN, depending on the selected mode).

Do the Wi-Fi passwords on the main router and the access point match?

They do not have to match technically, but for user convenience and the fast switching (roaming) function, it is recommended to set the same password and encryption type on all devices in the network.

Do I need to update the firmware before setting up?

This isn't mandatory, but it's highly recommended. New firmware versions contain fixes for security vulnerabilities and bugs that can cause instability in access point mode or client compatibility issues.