The situation where only one Wi-Fi stick works in distant rooms or the kitchen is familiar to every owner of an apartment with thick walls. Buying new equipment isn't always a smart move, as an old router often collects dust in a closet that could be a lifesaver.
Turning a router into repeater A wireless access point or router allows you to significantly expand your wireless network's coverage area without additional costs. This is a technically sound solution that only requires proper device software configuration.
In this article, we'll explore how to implement this scenario in practice, what operating modes exist, and what challenges you might encounter when setting up older equipment.
⚠️ Note: Not all router models support repeater mode out of the box. Before starting, make sure your device has the appropriate firmware version.
Operating principle and selection of equipment
The basic idea is to have a second router receive the signal from the main router and broadcast it further. Unlike a simple repeater, a router has a more powerful processor and antennas, which often yields better results.
There are several key operating modes that can be implemented in software. The most common is the WDS (Wireless Distribution System), mode client or mode bridge (Bridge).
To implement this plan, you'll need a primary router that distributes the internet and a secondary device that will act as an amplifier. It's best if both devices operate on the same frequency, although modern models can bridge both 2.4 GHz and 5 GHz.
It is important to understand that when using a wireless connection, the speed may decrease by approximately 50%, since the radio module cannot simultaneously receive and transmit data at full speed on one channel.
Preparing to set up the amplifier
Before performing any modifications, reset the secondary router to factory settings. This will prevent IP address conflicts and saved profiles that could interfere with proper operation.
To reset, find the button Reset on the device's body. It's usually recessed, so you'll need a paperclip or toothpick. Press and hold the button for 10-15 seconds until the indicators flash simultaneously.
After rebooting, connect to the device from a computer or smartphone. In the browser's address bar, enter the default IP address, often 192.168.0.1 or 192.168.1.1The login and password are usually indicated on the sticker at the bottom.
It is recommended to update the firmware to the latest available version. Manufacturers often add support for new protocols or fix bugs in the repeater mode through software updates.
☑️ Equipment preparation
Setting up WDS bridge mode
Mode WDS Allows you to combine multiple wireless networks into one. This is the most common method if both routers support this technology, even if they are from different manufacturers (although compatibility is not 100% guaranteed).
Go to wireless settings (Wireless) of the secondary router. Find the check mark or checkbox Enable WDS Bridging and activate it. After that, a button to search for available networks will appear.
Click "Scan" and select your primary network from the list. The system will automatically fill in the MAC address and network name (SSID). All you need to do is enter the Wi-Fi password.
It's critical to disable the DHCP server on the secondary router. Only the primary router should distribute addresses, otherwise a conflict will occur and devices will be unable to obtain an IP address.
⚠️ Note: In WDS mode, the wireless channels must match on both devices. Set the channel to a fixed value (e.g., 1, 6, or 11), not "Auto."
What to do if WDS is not working?
If WDS mode doesn't activate or the connection is unstable, try Client Mode or Access Point mode with a wired connection. Some manufacturers block WDS between different brands.
Client and access point mode
Some modern routers, for example, from Keenetic or ASUS, have a dedicated operating mode. In the interface, this may be called "Client Mode," "Repeater," or "Amplifier."
In this mode, the device completely abandons its router functions and becomes a transparent bridge. It connects to Wi-Fi like a regular device (laptop or phone) and distributes the internet connection further.
Setup is incredibly simple here: the setup wizard will automatically detect networks and prompt you to connect. All you need to do is select your network and enter the password.
The advantage of this method is stability. Its protocols are often more modern than those of classic WDS, ensuring less speed loss and better encryption support. WPA2/WPA3.
Comparison of network expansion methods
The choice of method depends on your technical capabilities and equipment specifications. A cable connection is always faster, but requires wiring.
Wireless methods are convenient where cables are impossible. However, they are susceptible to interference from microwaves, neighboring networks, and the thickness of walls.
| Parameter | WDS Bridge | Client Mode | Access point (cable) |
|---|---|---|---|
| Speed | Average (loss up to 50%) | High | Maximum |
| Complexity | High | Low | Average |
| Stability | Depends on interference | Good | Excellent |
| Compatibility | Low (similar brands are better) | Average | High |
If your router is very old, it may not support modern encryption standards, making it impossible to connect to your ISP's secure network or main router.
In this case, it makes sense to consider installing alternative firmware, for example, OpenWrt or DD-WRT, if the device model supports this feature.
Optimal placement of devices
Proper placement of the signal booster is the key to success. Many users make the mistake of placing the second router in a "dead zone" where the signal from the main router no longer reaches.
The booster must be located within a strong reception area. It must be able to "hear" the main router at at least 50-60% of the signal strength to allow for retransmission.
The ideal location is midway between the main router and the problem room. Experiment with the placement: sometimes moving the device 1 meter toward a window or hallway can make a dramatic difference.
⚠️ Caution: Avoid placing routers near metal objects, mirrors, aquariums, or operating microwaves. These can cause severe interference.
Common problems and their solutions
Even with proper configuration, connection issues may still occur. Devices often fail to obtain an IP address or constantly reconnect.
Check if MAC address filtering is enabled on the primary router. If there's a whitelist, add the secondary router's MAC address to it.
Another common issue is mismatched encryption types. Make sure the same security type is selected on both devices, for example, WPA2-PSK and the algorithm AES.
If your speed drops to a crawl, try manually changing your wireless network channel to a less congested one. You can use dedicated Wi-Fi analyzer apps on your smartphone for this.
Why does the speed drop by half?
In wireless mode, the repeater spends airtime receiving a packet from the client, then transmitting it to the main router, and vice versa. This splits the channel's bandwidth in half.
Is it possible to connect routers from different manufacturers via Wi-Fi?
Technically, this is possible in WDS mode, but in practice, compatibility issues often arise. It's best to use devices from the same brand or universal modes like "Universal Repeater."
Do I need to change the IP address of the second router?
Yes, it is necessary. If the main router has an address of 192.168.0.1, the second router should be set to, for example, 192.168.0.2 to avoid address conflicts on the network.
Will a booster increase internet speed?
No, internet speed is limited by your provider's plan. A booster only expands the coverage area and improves connection stability in distant rooms, but it doesn't add any megabits.
Which is better: one powerful router or a system of two?
For large apartments and houses, a system of two routers (mesh or bridge) is almost always better than a single powerful device, as it allows the signal to cover all rooms without dead zones.
Does this method work for 5GHz?
Yes, if both routers support the 5 GHz band. This is even preferable, as the 5 GHz band is less noisy, although it has less penetration through walls.