The problem of "dead zones" in an apartment is familiar to many home internet users. The signal from the main router often can't penetrate thick walls or ceilings, leaving some rooms without network access. A solution to this problem is to use a second router, which doesn't simply distribute internet via cable, but functions as a wireless repeater (repeater) of an existing signal.
This is a cost-effective way to expand coverage without purchasing expensive mesh systems or additional access points. However, the setup process requires careful consideration and an understanding of the operating principles. IP addressingIn this article, we'll take a detailed look at how to turn an old or spare router into a powerful signal booster.
Before you begin configuring, you need to prepare your equipment. You'll need two devices: a primary router that already distributes internet, and a secondary router that will operate in standby mode. repeat clientIt is important that the secondary device supports WDS (Wireless Distribution System) mode or has a special "Repeater" operating mode in the firmware.
Preparing equipment and resetting settings
The first and most critical step is clearing the secondary router's memory of old configurations. If the device was previously used on a different network, its settings may conflict with the current topology. To do this, find the button Reset on the body, usually it is hidden in a recess.
Press and hold the button with a paperclip for 10-15 seconds until the indicators blink simultaneously. After this, the router will reboot and return to factory settings. Now you need to connect your computer to this router via LAN cable, but do not connect it to the main router yet.
⚠️ Important: Before beginning setup, make sure you know the secondary router's control panel login IP address. This is often listed on a sticker on the bottom of the router's case and may be the same as the primary router's address (usually 192.168.0.1 or 192.168.1.1), causing a conflict.
If the addresses are the same, change them. LAN IP address Change the secondary router's IP address to a unique one, such as 192.168.0.254, so that it doesn't interfere with the primary gateway. This will allow you to seamlessly access the interfaces of both devices in the future.
☑️ Preparing to set up the repeater
Setting up IP addressing and a DHCP server
The key to building a unified network is proper addressing configuration. The secondary router in repeater mode must not conflict with the primary one. Access the secondary device's web interface through a browser by entering its IP address in the address bar.
Go to the section Network or Local area networkHere you need to change the IP address of the device itself. If the primary router has an address of 192.168.1.1, then set the secondary router's address to 192.168.1.2 (or any other address in the same subnet, but outside the primary router's DHCP range).
The next step is to turn it off. DHCP serversThere should only be one active server on the network distributing IP addresses to clients, and this should be the primary router. Find the corresponding option in the DHCP menu and select the state Disable or Off.
Why do I need to disable DHCP on my repeater?
If DHCP is left enabled on both devices, computers and smartphones will receive incorrect IP addresses or default gateways. This will result in devices "seeing" the router but not being able to access the internet, as requests will be sent to the wrong gateway that connects to the external network.
After changing the IP address and disabling DHCP, the router will prompt you to reboot. You'll need to reconnect your computer using the new IP address to access the control panel.
Wireless Network Configuration (WDS)
Now we move on to the most important part - setting up the wireless bridge. In the wireless network menu (Wireless) find the option WDS Bridging or "Operating Mode." Activate the bridge function.
After enabling WDS, a "Search" or "Survey" button will appear. Click it to have the router scan the air and find your primary network. Select the primary router's SSID from the list and click "Connect."
It is important to set the encryption type and password correctly. They must absolutely match With the primary router's settings. If the primary network uses WPA2-PSK with the password "12345678," then you need to select the same encryption type and enter the same password on the secondary router.
| Parameter | Main router | Secondary router (repeater) |
|---|---|---|
| SSID (Network Name) | Home_WiFi | Home_WiFi (for roaming) or Home_WiFi_Ext |
| Channel | Auto or fixed (eg 6) | The same (fixed) |
| Security mode | WPA2-PSK | WPA2-PSK (identical) |
| Password | Complex password | Complex password (identical) |
Make sure the wireless channels are the same. Although modern routers can switch automatically, for the stability of the WDS bridge it's better to fix the channel on both devices, for example, on 1, 6 or 11, to avoid interference.
Checking your connection and testing your speed
After saving the settings and rebooting both devices, the wireless indicator on the secondary router should light up or start blinking, indicating a successful connection. Connect your laptop or smartphone to the extender's network.
Check if the device is receiving an IP address from the main router. You can do this using the command line and the command ipconfig (for Windows) or ifconfig (for Linux/Mac). The default gateway should point to the IP address of the main router.
Run an internet speed test. Naturally, the speed through a repeater will always be lower than with a direct connection to the main source. This is because the radio channel operates in half-duplex mode: data is received and transmitted alternately.
If your speed is critically low, try relocating the repeater. It should be within range of your main router's signal, but closer to the "dead zone."
Possible problems and solutions
Setting up a network isn't always a smooth process. Users often encounter devices that connect to Wi-Fi, but the internet doesn't work. This is a classic sign of a setup error. DHCP or an incorrect gateway.
Another common problem is constant connection drops. This can be caused by overheating of the secondary router if it's old, or by strong interference from household appliances (microwaves, baby monitors) operating on the 2.4 GHz frequency.
⚠️ Note: Router interfaces from different manufacturers (TP-Link, Asus, D-Link, Keenetic) may differ significantly. The location of the WDS and DHCP menus varies. If you can't find the option you need, consult the official documentation for your specific model.
If your router freezes or won't save settings, its firmware may be outdated or corrupted. In this case, you should try updating the software via the System Tools.
Alternative ways to expand your network
WDS mode isn't supported by all router models, and it often performs poorly when connecting devices from different brands. If you're unable to set up a bridge, consider other options.
The most reliable way is to lay a gasket twisted pair (Ethernet cable) from the primary router to the second one. In this case, the second router is configured simply as an access point (AP mode), which ensures maximum speed and stability, since the data transmission channel between the routers does not extend over the air.
There are also PowerLine adapters that transmit the internet signal through the house's regular electrical wiring. This is an excellent solution for apartments where cable installation is impossible and the radio signal is blocked by thick concrete walls.
Choose your network expansion method based on your technical capabilities and speed requirements. A cable is best for gaming and 4K video, while a high-quality Wi-Fi bridge is perfectly sufficient for surfing social media and messaging apps.
Is it possible to use routers from different manufacturers to create a bridge?
In theory, the WDS standard is universal, but in practice, different manufacturers (for example, TP-Link and Asus) often use their own implementations of the protocol. Connecting them in wireless bridging mode (WDS) is rarely possible. For stable operation, it is recommended to use routers of the same brand or configure a second router in "Access Point" mode with a cable connection.
Will my internet speed decrease when using a repeater?
Yes, the speed will typically decrease by 30-50%. This happens because the repeater's radio module is forced to receive the signal from the main router and immediately broadcast it, taking up airtime. The further the repeater is from the main source, the lower the speed.
Do I need to change the Wi-Fi password when setting up the repeater?
No, the password must remain the same if you want devices to switch automatically (although this may not always be successful without mesh systems). The key is that the encryption type (WPA2/WPA3) and the password match on both devices for the bridge to function correctly.