How to connect a router to another router via Wi-Fi to share the Internet

Extending wireless network coverage is often a necessity in large homes, offices, or spaces with complex wall layouts. A standard router, even the most powerful, isn't always capable of penetrating all obstacles and providing a stable signal in remote rooms. This is where the question arises of how to connect one router to another via Wi-Fi to create a unified, seamless network or simply increase the range.

There are several ways to accomplish this, and the choice of a specific method depends on your goals and the technical condition of your equipment. A wired connection can guarantee maximum speed, but it requires running cables throughout the entire apartment. However, if drilling into walls and running wires isn't an option, technology can help. WDS (Wireless Distribution System) or wireless bridge mode. This method allows data to be transferred between devices without physical cables, using radio.

In this guide, we'll walk you through the process of setting up a router bridge, focusing on IP addresses, channels, and operating modes. Proper configuration will prevent network conflicts and ensure stable operation of all connected devices. It's important to understand that not all router models support bridging, so before you begin, ensure your device's firmware supports the appropriate options.

Selecting a connection diagram and preparing equipment

Before you begin setting up, you need to clearly define the specific task you're solving. If your goal is simply to distribute internet to devices in another room where the signal is weak, a setup using a second router in repeater or client mode is suitable. In this case, the second device will receive the signal from the first and transmit it further. For establishing a wireless local network between two buildings or floors, WDS Bridge mode is more commonly used.

A critical step is preparing the primary router, which is already connected to the provider and is distributing internet. It must be configured correctly, and Wi-Fi must be stable. It is recommended to know the wireless network parameters in advance: name (SSID), encryption type, and password. Without this information, you will not be able to configure the second router as a receiver. It is also worth ensuring that the firmware of both devices is updated to the latest version, as older versions may contain bugs in the wireless module.

For a successful connection, it is desirable that both devices be from the same manufacturer, although the WDS standard is universal. In practice, compatibility between different brands, for example, TP-Link And Asus, may be limited or require manual configuration of specific parameters. If possible, use identical models or devices from the same product line—this will significantly simplify the process and minimize the risk of protocol compatibility issues.

⚠️ Attention: When setting up a wireless bridge, connection speed may drop to 50% of the nominal value, as the radio module simultaneously transmits and receives data. For mission-critical applications requiring maximum speed, a wired (LAN-to-LAN) connection is preferable.

Prepare a computer or laptop that will be used to access the web settings interface. It's best to perform the initial configuration using a cable connection to the router to avoid connection interruptions while making changes. If this isn't possible, ensure your device has a stable Wi-Fi connection to the primary router before working with the secondary router.

Setting up IP addresses and local network

The foundation of any proper network setup is proper IP address allocation. Each router on your local network must have a unique IP address so that computers and other devices can find and communicate with them. By default, most home routers have an address 192.168.0.1 or 192.168.1.1If you try to connect two devices with the same addresses, a conflict will occur and the network will stop working.

First, let's go to the settings of the main router (the one distributing the internet). We need to record its address and DHCP server settings. Write this information down. Then, move on to setting up the second router. Connect it to the computer with a cable (without connecting it to the first router yet) and log in to its web interface. Find the section LAN or Local area network. Change the IP address of the second device so that it is in the same subnet as the first one, but with a different last digit. For example, if the first one has the address 192.168.0.1, ask the second one 192.168.0.2.

After changing the IP address, the router will likely require a reboot. You'll need to re-enter the interface using the new address. The next step is to disable the DHCP server on the second router. This is essential if you want all devices on the network to receive addresses from the main router. If DHCP remains enabled on both devices, the devices will receive incorrect gateway and DNS settings, resulting in internet access failure.

The table below shows sample settings for connecting two routers:

Make sure you save all changes before exiting the menu. Incorrectly saved settings can result in loss of access to the device interface. In this case, a factory reset via the button will help. Reset on the case, but it's best to double-check the entered data. It's also worth noting that after disabling DHCP, you'll only be able to manage the second router using the static IP you assigned it.

Wireless WDS Configuration

Now let's move on to the most important part: setting up a wireless connection between the devices. In the web interface of the second router, find the section responsible for the wireless network. It may be called Wireless, Wi-Fi or Wireless modeWe need to activate the bridge function. It may have different names in different firmware versions: WDS, Bridge, Repeater mode or Client mode.

Select operating mode WDS or Wireless bridgeAfter activating this mode, additional configuration fields often appear. You'll need to enter the SSID (network name) of your primary router. Some modern interfaces allow you to simply click "Search" or "Scan" to see available networks within range. Select your primary network from the list.

The key point is to set the encryption type and password. The security settings on the second router should be completely coincide with the parameters of the first one. If the main router uses encryption WPA2-PSK and password MySecretPass123, then you need to set exactly the same values ​​on the second device. Any discrepancy, even in case, will result in the connection failing.

You should also pay attention to the wireless channel. For stable WDS operation, both routers must operate on the same channel. It's best to manually set the channel (for example, 1, 6, or 11 for the 2.4 GHz band) rather than leaving it in "Auto" mode. This will prevent the primary router from switching to a different channel after a reboot, interrupting the connection with the secondary device.

After entering all parameters, save the settings. The second router will attempt to connect to the primary router. The wireless network indicator on the device may change behavior (flashing less frequently or remaining solid), indicating a successful connection. The connection status can also be checked in the web interfaces under WDS or wireless bridge status; it should read "Connected."

Organizing a unified Wi-Fi space

One common goal for users is to create a unified Wi-Fi space, where devices automatically switch between routers without losing the connection. To achieve this, the network name (SSID) and password on the second router must be identical to the settings on the first. However, simply copying the name won't provide seamless roaming, as standard routers don't have the ability to transmit a command to the client to switch to a stronger signal source.

However, modern smartphones and laptops make the decision to switch automatically. If you set the same names and passwords, the device will see a single network with multiple access points. It will try to connect to the strongest signal. To improve this process, it's recommended to slightly reduce the transmitter power on the second router if it's close to the first one, or, conversely, increase it if it's in a distant room.

It is important to understand the difference between the mode Repeater and the regime Access Point With WDS. In repeater mode, the network does expand, but the bandwidth is split in half. In access point mode with a wired connection (if you decide to run a wire), there's no loss of speed. When using a WDS wireless bridge without repeater functionality (client mode), the second router simply distributes the internet connection received over the air, creating a new subnet or expanding an existing one depending on DHCP settings.

If you want devices to be indistinguishable, make sure the encryption type is also the same. You can't merge a WPA2-encrypted network with a passwordless or WPA3-encrypted network. Ideally, the wireless module configuration should be a mirror copy, with the exception of the device's IP address and possibly the channel (unless you're using WDS, which requires a single channel).

Why don't devices switch between routers?

Smartphones often latch onto a weak signal from the primary router, even after you've moved into range of the secondary router. This is called "client stickiness." To force the device to switch, you sometimes need to temporarily turn off Wi-Fi on your smartphone and then turn it back on while near the secondary router. Only mesh systems or professional equipment (Omada, UniFi, Keenetic with advanced settings) support fully seamless roaming (802.11r/k/v).

Solving typical problems and diagnostics

Even with careful setup, problems can still arise. The most common is when devices connect to the second router's Wi-Fi, but the internet doesn't work. This almost always indicates an error in the DNS or gateway settings. Check that the DNS servers are configured in the LAN or WAN settings on the second router (depending on the mode). It's best to specify the DNS servers from your ISP or a public DNS, such as Google (8.8.8.8).

Another common issue is low data transfer speed. As mentioned, a wireless connection always introduces latency and reduces throughput. If speed has dropped dramatically, try changing the Wi-Fi channel to a less crowded one. Use Wi-Fi network analysis apps on your smartphone to find a free channel. Also, make sure the second router isn't located near a microwave, Bluetooth speakers, or metal objects that could interfere with the signal.

If the WDS status shows "Disconnected", check:

• 📡 Do the MAC addresses match? Some older routers require you to manually enter the MAC address of the primary router in the secondary router's WDS settings.
• 🔐 Encryption type: Try temporarily removing the password (open network) to test the connection. If it works, the problem is with the key or encryption type.
• 📶 Distance: The signal strength of the main router at the installation point of the second router may be too weak for a stable bridge.

Keep in mind that antivirus software and firewalls on computers can block access to local resources, even though the internet connection is working. When troubleshooting, always rule out software interference on your PC by trying to connect from another device, such as a tablet.

Security of the created network

By expanding your network, you increase your attack surface. A second router, for example, located in the hallway or by a window, can be accessible not only to you but also to your neighbors if the signal extends beyond your apartment. Therefore, security is a priority. Never leave your network open without a password, even a "guest" network.

Use a modern encryption standard WPA2-PSK (AES) or WPA3, if your equipment supports it. Avoid the outdated WEP protocol, which can be cracked in minutes by any novice with a smartphone. The password should be complex, contain mixed-case letters, numbers, and special characters. It should be at least 12 characters long.

⚠️ Attention: Don't use WPS (Wi-Fi Protected Setup) to connect devices. This technology has known vulnerabilities that allow attackers to easily access your network. It's better to spend a minute manually entering the password than to risk your data.

It is also recommended to change the password for logging into the router's web interface. Factory default passwords are admin/admin are known to all hackers. If an attacker gains access to the interface, they can redirect your traffic or block access to the network. Change the password in the section System Tools or Administration.

Regularly check the list of connected clients in the router interface. If you see an unfamiliar device, change your Wi-Fi password immediately. Some modern routers allow you to block devices by MAC address directly from the client list, which is a convenient feature for rapid response.

FAQ: Frequently Asked Questions

Is it possible to connect routers from different manufacturers via Wi-Fi?

Technically, the WDS standard is universal, but in practice, different manufacturers (for example, TP-Link and D-Link) often implement it differently. Connection is possible, but not guaranteed. Most often, connecting devices from the same brand works. For mixed-mode pairs, it's better to use the "Universal Repeater" mode if supported by the second router, as it's less demanding on compatibility.

Will my internet speed decrease when I connect a second router?

Yes, when using a wireless bridge (WDS) or repeater mode, speed will inevitably drop, often by around 50%, since the radio channel operates in half-duplex mode (receive and transmit). This is usually unnoticeable for watching videos and surfing, but for online gaming or downloading large files, it can be noticeable. A cable connection avoids this drawback.

Should I buy a second router of the same model as the first?

You don't have to buy the exact same model, but it's highly recommended to choose devices from the same manufacturer and, preferably, from the same series. This significantly increases the chances of successfully setting up a WDS and ensuring stable network operation without any hassle. If you're just planning a purchase, consider ready-made mesh systems designed specifically for these types of applications.

What to do if the second router does not see the first one’s network?

Make sure both devices are within range. Check to see if the primary network's SSID is hidden (if it is, WDS may not work without manual input). Also, try temporarily disabling MAC address filtering on the primary router. In some cases, resetting both devices to factory settings and setting them up from scratch helps.

Can 5GHz be used for bridging?

Yes, if both routers support the 5 GHz band. This is even preferable, as the 5 GHz channel is less noisy and provides higher speeds. However, 5 GHz has a shorter range and is less effective at penetrating walls. For a bridge between floors or through a single load-bearing wall, 2.4 GHz may be more stable.