Many home network users are familiar with the situation of a virtually nonexistent WiFi signal in a distant room or on the balcony. This is often due to thick walls or a remote location where the main router can't cover the entire apartment. Instead of purchasing expensive mesh systems or new access points, you can use your existing ASUS router. Modern models from this brand feature a built-in repeater function, which can be used as a powerful signal booster.
Using an old ASUS router as a repeater — is a cost-effective and efficient solution for expanding your wireless network coverage. You don't need to run additional cables throughout your entire apartment; simply place the device within the primary signal range. However, the setup process has its own nuances, depending on the firmware version and the specific equipment model. In this article, we'll detail the steps you need to take to stabilize your internet connection in "dead zones."
Before starting the software setup, you need to physically prepare the hardware. Make sure you have access to the web configuration interface and know the password for the main network. If you plan to use a device with ASUSWRT firmware, the process will take no more than 10-15 minutes. It's important to understand that in repeater mode, the speed may be lower than with a direct connection, but the connection stability is worth it.
Preparing equipment and choosing an installation location
The first step is choosing the right location for the future repeater. The device should be within range of the main router's signal, but also close enough to the area where the signal needs to be boosted. If the repeater is placed too far away, it will pick up a weak signal and transmit even weaker. The optimal location is approximately halfway between the main router and the area with poor coverage.
To configure the router, you'll need a computer or laptop connected to the ASUS router you're configuring via a cable. While many modern models allow network configuration via WiFi, a wired connection ensures seamless connection during configuration updates. It's also a good idea to know the MAC address of your primary network beforehand if you plan to use address filtering, although this isn't necessary in most cases.
⚠️ Important: Before beginning setup, we strongly recommend resetting your ASUS router to factory settings. This will prevent IP address conflicts and old configurations that could prevent the repeater mode from working properly.
The reset process is carried out by holding down the button Reset Press the power button on the back of the device for 10-15 seconds until the indicators blink simultaneously. After rebooting, the router will be ready for a clean installation. Make sure the device's power supply is working properly, as unstable voltage can cause the radio module to malfunction during setup.
Login to the web interface and update the firmware
After connecting your computer to the LAN port of the ASUS router, you need to open any browser and enter the standard IP address in the address bar. This is usually 192.168.1.1 or domain name router.asus.comThe system will ask for a login and password to access the control panel. By default, most ASUS devices use the following login and password: admin and password adminIf you have changed this information previously, please use the current credentials.
Once in the interface ASUSWRT, the first thing you should do is check the software version. Manufacturers regularly release updates that improve the stability of the WiFi module and patch security vulnerabilities. Go to the section Administration (Administration) and find the tab Firmware updateIf a new version is available, download it from the official website and install it through the web interface.
Updating the firmware is a critical step, as the repeater mode may not function correctly or be absent entirely in older software versions. After installing the update, the device will automatically reboot. Do not interrupt this process and wait until the system has fully booted up. Only then can you begin configuring the operating mode.
☑️ Check before setup
Setting up the operating mode: Repeater and Media Bridge
The ASUS router control panel has several operating modes, but two main ones are suitable for our purposes: Repeater (Repeater) and Media Bridge (Bridge). Repeater mode extends a wireless network by creating a duplicate of the main network's SSID or a new network with the same access rights. Media Bridge is designed for connecting wired devices (such as a Smart TV or gaming console) to the main router's WiFi network via ASUS.
To switch the mode, go to the section Administration and select the tab Opening hours (Operation Mode). Here you will be presented with several options. Select Repeater mode, if you need to distribute WiFi further. If your goal is to connect a device in another room to the internet via cable, select Media BridgeAfter selecting, click the button Save.
The system will warn you that a reboot is required. After the reboot, the router will attempt to search for available wireless networks. In the window that opens Quick Internet setup (Quick Internet Setup) click the button Auto search (Scan). The router will scan the air and display a list of available networks. Find your primary network in the list and select it.
| Parameter | Description | Recommended value |
|---|---|---|
| Opening hours | Functional purpose of the device | Repeater / Media Bridge |
| Network SSID | Wireless network name | Same as main (for roaming) |
| Frequency range | Operating frequency of the radio module | 2.4 GHz or 5 GHz |
| Channel | Frequency data transmission channel | Auto or fixed (1, 6, 11) |
It's important to note that when using Media Bridge mode, the ASUS itself won't broadcast a wireless network; it will act solely as a receiver for wired clients. This reduces the load on the airwaves and can be useful in apartment buildings with noisy radio frequencies.
What is the difference between WDS and a regular repeater?
WDS (Wireless Distribution System) requires configuration on both routers and often only works between devices of the same brand. The standard Repeater mode on ASUS is universal and can connect to any network, but may slightly reduce speed due to protocol specifics.
Connecting to the main network and setting up security
After selecting your primary network from the scan list, the system will prompt you to enter a security key. Enter the password for your primary WiFi router. Pay attention to the case, as even a single letter error will prevent you from connecting. After entering the password, click Connect.
In the next setup step, you'll be asked to configure the repeater's wireless network settings. You can leave the network name (SSID) the same as your main router to create a unified namespace, or you can create a unique name to identify which access point you're connected to. For security, select the encryption type. WPA2-Personal or WPA3-Personal, if supported by both devices.
In the wireless network settings section, it's also recommended to manually set the channel if you know the channel the main router is using. However, in repeater mode, it's often better to leave the channel setting in automatic mode or sync it with the main device. If the main router operates on channel 6, it's best for the repeater to also operate on it to avoid unnecessary switching.
⚠️ Important: When setting up security, ensure that the selected encryption method is supported by all your devices. Using legacy WEP or mixed WPA/WPA2 modes can reduce overall network speed.
After applying the settings, the ASUS router will attempt to connect to the primary access point. The WAN indicator on the front panel should light up or change color, indicating a successful internet connection. If the indicator is blinking or red, check the password entered correctly and the distance between the devices.
Setting up an IP address and DHCP server
One of the most important technical aspects is proper IP addressing configuration. By default, an ASUS router may attempt to assign itself an address already taken by the primary router, causing network conflicts. In repeater mode, the ASUS device should act as a client, not as a server for the entire network.
Typically, when selecting Repeater mode, the system automatically disables the DHCP server on the ASUS, handing over the address distribution function to the main router. However, it is recommended to check this manually. Go to the section Local area network (LAN) -> IP addressMake sure the ASUS router's IP address is in the same subnet as the primary router, but not the same. For example, if the primary router has an IP address 192.168.1.1, then it is better to assign ASUS 192.168.1.2.
If you don't change the IP address, you may have difficulty accessing the repeater settings in the future, especially if the main router assigns it a different address via DHCP. Setting a static IP address for the control device itself simplifies future maintenance. Also, make sure the subnet mask is set to 255.255.255.0.
In some scenarios, when a repeater is connected, devices may become stuck on a weak signal from a distant router, failing to switch to the nearby one. To minimize this effect, you can slightly reduce the signal strength on the repeater in the settings. Professionally in the wireless network section, if this option is available on your model.
Dual-band routers and 5 GHz features
Owners of dual-band ASUS routers (supporting 2.4 GHz and 5 GHz) face additional capabilities and challenges. In repeater mode, these devices can connect to the main network on one band and broadcast on another, or operate in cross-band bridge mode. This reduces airtime congestion and improves speed.
The most efficient setup is to connect the extender to the main router via a fast and stable 5 GHz channel, while distributing the signal to clients via 2.4 GHz (or vice versa, depending on the needs). In the setup interface, this is accomplished by selecting the appropriate network during scanning. If the main network has the same name for both bands (Smart Connect), the extender may select the wrong band, so for precise configuration, it's best to temporarily separate the networks on the main router.
When using the 5 GHz band, line-of-sight and distance requirements increase. Walls and obstacles attenuate the 5 GHz signal much more than 2.4 GHz. Therefore, a 5 GHz repeater will need to be placed closer to the main signal source. However, data transfer rates will be significantly higher in this case, which is critical for watching 4K video or online gaming.
In the wireless settings (Wireless) You can enable or disable the radio modules separately. If you're using the repeater only to extend the 5 GHz network, you can disable the 2.4 GHz module to avoid unnecessary interference. This will also slightly reduce the device's heat output.
Why does the speed on the repeater drop?
Since the radio module works both for receiving and transmitting data, the actual speed in a network with a repeater will always be lower than with a direct connection to the main router, sometimes up to 50%.
Troubleshooting and Signal Optimization
After completing the setup, you need to test the connection quality. Walk around your apartment with your phone or laptop and measure the signal strength and internet speed at different points. If the speed drops to zero within the repeater's coverage area or the connection constantly drops, the device may be too far from the main router.
A common problem is a "loop" or IP address conflict, which occurs when two devices with the same address are connected to the network. This can cause internet connection loss for all devices. Check the client table on the primary router—the connected ASUS should be displayed there. Also, make sure the DHCP server is not enabled on the repeater unless it is required to create a separate subnet.
For optimization, you can use the built-in traffic analysis tools in the ASUSWRT interface. Channel load charts will help you understand how much airspace is available. If a channel is overloaded by neighboring routers, it makes sense to manually switch the main router and repeater to a less congested channel, even if this requires rebooting the main equipment.
⚠️ Note: The interface and menu item names may vary slightly depending on your router model and ASUSWRT firmware version. Always consult the official documentation for your specific model if you have trouble finding the item you need.
If you cannot configure the repeater mode using standard tools (for example, on very old models), you can consider alternative firmware, such as Asuswrt-Merlin or DD-WRTThey offer advanced functionality, but require more in-depth knowledge and carry the risk of voiding the warranty. For most users, the standard functionality of modern ASUS routers is sufficient.
Frequently Asked Questions (FAQ)
Can an ASUS router be used as a repeater for a router of another brand?
Yes, the Repeater mode on ASUS routers is compatible with most other manufacturers (TP-Link, D-Link, Zyxel, etc.), as they use the standard WiFi protocol. The main thing is to enter the correct password and select the network.
Will my internet speed decrease when using ASUS as a repeater?
Yes, speed will inevitably decrease, as the radio channel is used for both receiving and transmitting data. In repeater mode, speed loss can range from 20% to 50% compared to a direct connection to the main router.
What should I do if my ASUS router doesn't see the main router's network when scanning?
Try reducing the distance between devices during setup. Make sure your main router doesn't have SSID broadcasting (a hidden network) enabled or MAC address filtering enabled that would block the new device.
Do I need to connect a cable from the main router to the ASUS to operate in repeater mode?
No, in wireless repeater mode, the connection between the routers is wireless. A cable is only needed for the initial setup from a computer or if you select Access Point mode with a wired connection.
How to restore an ASUS router to normal operation?
To do this, you need to go to the settings, go to the section Administration -> Opening hours and choose Wireless router (Wireless Router). After saving the settings and rebooting, the device will function as a standard router.