Many users are familiar with the situation where the main wireless network doesn't cover the entire home or office. The signal weakens behind thick walls, and in distant rooms the internet is unstable or even disappears completely. Often, in such cases, an old router collecting dust in a closet or a specially purchased budget device comes to the rescue. Converting a router into access point (Access Point) is the most effective way to extend the coverage of a wired network without losing the speed typical of simple repeaters.
Unlike repeater mode, which cuts the channel's bandwidth in half, using a second router in access point mode allows data transfer at full speed, as the connection to the main router is via a cable. This solution is ideal for setting up a stable Wi-Fi connection in a garage, summer house, or at the far end of an apartment. You don't need to buy expensive equipment; simply configure your existing devices correctly.
In this guide, we'll cover all the configuration details, from changing the IP address to disabling the DHCP server. We'll cover the physical aspects of the connection, software interface configuration, and troubleshooting common issues. Understanding these processes will allow you to create a seamless network where devices automatically switch between signal sources without interrupting the connection.
The difference between an access point, a repeater, and a router
Many users confuse the concepts of a router, repeater, and access point, although functionally these are different devices with different operating principles. A typical router Creates a local network, assigns IP addresses to connected devices via a DHCP server, and routes traffic between the local network and the internet. It is the "master" control node.
Repeater mode (or repeater) is used to extend a network wirelessly. A repeater receives the Wi-Fi signal from the main router and broadcasts it further. The main drawback here is the loss of speed, as the radio channel operates in half-duplex mode: it cannot simultaneously receive and transmit data on the same frequency. An access point (AP) operates differently: it receives internet via a cable from the main router and simply broadcasts it over the air, without any routing.
⚠️ Please note: When using repeater mode, the actual internet speed on client devices may drop to 50% of the original speed. Access point mode eliminates this drawback, but requires a cable between the devices.
The key difference of an access point is that it is transparent to the network. Devices connecting to it receive IP addresses from the main router and see each other as if they were connected to the same switch. This allows for local file sharing, network printers, and media servers without the need for additional port forwarding.
Equipment preparation and physical connection
Before starting the software setup, you need to properly prepare the equipment. You'll need a primary router, already configured and distributing the internet, and a second router, which will operate as an access point. To connect the devices, you'll need a twisted pair cable (a patch cord). The cable can be quite long; the Ethernet standard allows data transmission over distances of up to 100 meters without signal loss.
It's important to understand which port to use on the secondary device. In the classic setup, when we manually disable DHCP and change the IP address, the cable from the main router (from the LAN port) is connected to LAN port The second router. The WAN (Internet) port on the second device in this setup remains free and unused. This turns the router into a regular switch with Wi-Fi functionality.
However, modern models from manufacturers such as TP-Link, Asus or Keenetic, often have a software mode switch. If your device's interface has an "Access Point" mode option, you can connect the cable to the WAN port, as the firmware will automatically redirect the data streams. However, a universal method that works on any equipment, even the most ancient, is connecting via LAN.
☑️ Preparing for setup
Setting an IP address and disabling the DHCP server
The most critical step in setting up is changing the network settings of the secondary router. By default, both devices have the same IP address (most often 192.168.0.1 or 192.168.1.1). If you connect them to a network with the same addresses, a conflict will occur and the network will stop working. Therefore, change the LAN IP address of the second router.
Connect your computer to the second router (without connecting it to the main one yet). Log in to the web interface and find the section Network or LANYou need to change the address to one that is in the same subnet as the main router, but not the same. For example, if the main router has the address 192.168.1.1, ask the second one 192.168.1.254Leave the subnet mask as default: 255.255.255.0.
The second important step is disabling the DHCP server. There should only be one "distributor" of addresses on the network—your main router. If DHCP is left enabled on the access point, devices will receive incorrect gateway and DNS settings, resulting in no internet connection. Find the section DHCP Server and select the option Disable or Off.
What to do if you forgot your new IP address?
If you've changed your router's IP address and forgotten it, the only way to regain access is to perform a factory reset (hard reset). To do this, press the Reset button on the device for 10-15 seconds until the LEDs flash simultaneously. After this, the router will return to the address indicated on the sticker on the bottom of the device.
After saving the settings, the router will prompt you to reboot. Your computer will lose connection to it because the IP address has changed. You'll need to manually assign a static IP address to your PC's network card or simply wait for it to receive an address from the main router (if you've already connected them via cable) and then log in to the interface using the new address.
Setting up a wireless Wi-Fi network
Once the network portion is configured, you need to configure the wireless module. Go to the section Wireless or Wi-FiHere you can set the network name (SSID) and password. There are two naming strategies: create a single network with the same name and password as the main router, or create a separate network.
If you want your devices to automatically switch between routers as they move, set the same network name (SSID), encryption type (WPA2-PSK), and password. However, keep in mind that this is not a complete solution. Roaming (802.11r/k/v), supported by professional systems. The client device (smartphone or laptop) will cling to the access point's signal until the very end, even if it's weak, and will switch to the main router only if the connection is completely lost.
To avoid interference, it's recommended to select a Wi-Fi channel that doesn't overlap with the main router's channel. If the main router broadcasts on channel 1, it's best to configure the access point to channel 6 or 11. This is especially important in the 2.4 GHz band, where there are only three non-overlapping channels.
| Parameter | Main router | Second router (Access point) | Recommendation |
|---|---|---|---|
| IP address | 192.168.1.1 | 192.168.1.254 | Must be unique |
| DHCP Server | On | Off | Critical |
| SSID (Name) | Home_WiFi | Home_WiFi | Same for roaming |
| Channel | 1 (Auto) | 6 or 11 | Shouldn't match |
⚠️ Note: Router interfaces are constantly being updated. The location of DHCP and LAN settings may vary depending on the firmware version. If you can't find the desired setting, use the settings search or refer to the manufacturer's documentation.
Customization features for different manufacturers
Although the setup logic is the same for all devices, manufacturers often hide functions in different places or give them unique names. For example, in routers TP-Link For older models, you need to manually change the IP and disable DHCP, as described above. For newer models with the operating system TPLink OS or OpenWrt there may be a separate operating mode switch in the section Operation Mode.
Devices from Asus often have a "Media Bridge" or "Access Point" mode in the section Administration -> Operation ModeWhen this mode is selected, the router will automatically disable unnecessary functions and reconfigure ports. The equipment behaves similarly. Keenetic: there is a clear division between "Router", "Access Point" and "Repeater". Selecting the correct profile in Keenetic will automatically apply all necessary security and network settings.
For budget Chinese routers (for example, Tenda, Mercusys) The universal method of disabling DHCP and connecting a cable to the LAN port is the most reliable. Sometimes in such devices, the function is called "Wireless AP" and is located in the system settings. If you are unsure of what you're doing, always start with a factory reset to avoid configuration errors.
Bridge mode and other use cases
It's worth mentioning that the term "access point" is sometimes confused with "Bridge" mode (WDS Bridge or Client Bridge). In Client Bridge mode, the router connects to the provider's Wi-Fi network or the main router without a cable and distributes internet further via a cable (to the LAN port) or also via Wi-Fi. This is useful if running cable between buildings or rooms is not possible.
However, the stability of such a connection is always lower than that of a wired connection. The radio channel is susceptible to interference from microwave ovens, neighboring networks, and even aquariums. If it's technically feasible to run a twisted pair cable, always choose a wired connection to the access point. This will ensure minimal ping, which is critical for online gaming and video calls.
There's also a WDS (Wireless Distribution System) mode, which allows you to connect multiple access points into a single network wirelessly. However, this protocol is often unstable, requires support from all devices, and typically only works within equipment from a single brand. For home use, the classic "cable + AP" configuration remains the gold standard.
Diagnosing problems and checking network operation
Once setup is complete, you need to make sure everything is working correctly. Connect your smartphone or laptop to the access point you just created. Check if you've received an IP address within the range of the main router. If you see an address starting with 169.254.x.x, this means that DHCP is not working or there is no connection with the main router.
Run a speed test. Run an internet speed test service (such as Speedtest) in close proximity to the access point and compare the results with those measured near the main router. If connected correctly via the LAN port, the speed difference should be minimal (within 5-10% due to the cable length).
If you have internet access but the speed is slow, check the negotiated link speed. The connection status on your computer should show 1000 Mbps or 1 Gbps. If it is indicated there 100 Mbps, it is possible that you are using an old cable (which only uses 4 wires instead of 8) or the port on one of the devices is limited to Fast Ethernet.
Is it possible to use an access point without connecting to the main router via cable?
Technically, if you configure the second router in "Client" or "Repeater" mode, it will receive the main router's Wi-Fi signal. However, this will no longer be a classic access point (AP Mode), but rather a network extension mode, which often results in a loss of speed and stability. A full-fledged access point requires a wired connection.
Do I need to turn off Wi-Fi on my main router if I'm setting up an access point?
No, you don't need to. You can leave Wi-Fi enabled on your main router for nearby devices and use the access point to cover longer distances. The key is to choose the right broadcast channels so they don't overlap.
Will the access point work if the main router turns off?
No. The access point (in the described configuration) only broadcasts a signal. All traffic and IP address distribution go through the main router. If the main router is turned off or loses connection to the ISP, the internet connection on the access point will be disabled, although the local area network (LAN) between the devices may remain.
What cable is best to use to connect routers?
The optimal choice is shielded twisted pair cable (category Cat5e or Cat6) terminated according to the T568B standard. For distances up to 50 meters indoors, unshielded cable (UTP) is also suitable, but shielding (FTP/STP) will protect the signal from interference if the cable is installed near electrical wiring.