Many users face a situation where the Wi-Fi signal is virtually nonexistent in one room of their apartment or office, and installing new cable is either impossible or too costly. In such cases, there's no need to purchase specialized, expensive equipment, as an old or spare router can be converted into an effective solution. access point, significantly expanding the range of your network.
This procedure allows you to leverage your existing infrastructure and create a unified wireless network where all devices can see each other without the need for complex port forwarding settings or creating separate subnets. We'll cover the general operating principles that apply to most popular router models, regardless of manufacturer.
Before diving into the technical details, it's important to understand the physical meaning of this operation: you disable routing functions (NAT, DHCP server) and transform the device into a simple switch with antennas that merely broadcasts the signal from the main router. This fundamental change in the operating logic of the equipment requires careful consideration when configuring IP addresses.
Equipment preparation and compatibility testing
To get started, you'll need the router itself, which will act as an access point, and the main router, already connected to the internet. Make sure you have LAN cable (twisted pair), preferably at least 1-2 meters long for ease of testing before final installation. It's also a good idea to have a computer or laptop with a network card for initial setup.
Not all router models are equally easy to repurpose, although theoretically it is possible on any device. Some modern models Keenetic or MikroTik They have software-based mode switching in the interface, which significantly simplifies the process. However, the classic method we'll discuss works even on older devices without special firmware.
⚠️ Important: If you are using a router provided by your ISP (for example, one with the carrier's logo), make sure its admin panel is not locked and allows you to change local network settings; otherwise, you will not be able to turn it into an access point.
It is also important to check if both devices have free ports. LAN. Unlike a standard connection, which uses a port WAN (or Internet), in access point mode we will use local ports, since the WAN port in our scheme often remains unused or is used specifically.
Changing the IP address of the secondary router
The first and most critical step is to change the secondary router's IP address so it doesn't conflict with the primary router's. By default, most devices have an address 192.168.0.1 or 192.168.1.1If both routers remain with the same addresses, a conflict will occur and the network will stop functioning correctly.
Connect your computer to the secondary router with a cable, without connecting it to the primary network yet. Access the web interface by entering the device's default address in your browser. Find the section usually labeled LAN, Network or Local area networkHere you need to change the last digit of the address, for example, to 192.168.0.254, if the main router has an address 192.168.0.1.
What to do if you forgot your router password?
If you haven't changed the default login credentials, try the combinations admin/admin or admin/password. If the password has been changed and forgotten, you'll need to perform a factory reset by holding the Reset button on the device for 10-15 seconds.
After saving the settings, the router will prompt you to reboot, and it will now be accessible via the new address. Remember or write down this address, as you'll need it later to manage the access point or change the Wi-Fi password.
Disabling the DHCP server
The most common setup mistake is leaving the DHCP server enabled on the secondary device. In a properly configured network, only one central node—your primary router—should distribute IP addresses. If DHCP is left enabled on the access point, devices will receive incorrect gateway and DNS settings, resulting in no internet connection.
Find it in the settings menu DHCP Server (often found in sections LAN or Network). Select an option Disable or Off (Disable). Save the changes. From this point on, your router no longer functions as a router and becomes a "dumb" switch, simply forwarding traffic.
- 🔌 Disable DHCP on the secondary device to avoid addressing conflicts.
- 🔄 Make sure that the DHCP address pool on the main router is large enough for all clients.
- 📡 Check that the clients' default gateway points to the main router.
After disabling DHCP, a computer connected to the secondary router may lose network connectivity because it no longer receives an IP address automatically. This is normal. For further configuration, you may need to manually assign a static IP address to the computer's network card within the primary network range.
Setting up a wireless Wi-Fi network
Now you need to configure the wireless network itself. Go to the section Wireless or Wi-Fi SettingsHere you set the network name (SSID) and a password. You can name the network the same as the main one to create a unified namespace (roaming won't work in this case, devices will switch automatically, but not always optimally), or give it a unique name, for example, Home_WiFi_Ext.
For maximum compatibility and speed, it is recommended to select the standard 802.11n or 802.11ac (5 GHz), if your devices support this range. In the security settings, be sure to select the encryption type WPA2-PSK (AES), as it is the most reliable and widely used standard at the moment.
Be sure to set a strong password. Weak wireless network security can allow outsiders to not only use your internet but also access local resources if DHCP is improperly disabled, resulting in traffic leaks.
Physical cable connection diagram
After completing the software setup, you need to properly connect the devices with a cable. In the classic "router as an access point" setup, the cable from the main router (from the port LAN) is inserted into the port LAN secondary router. Port WAN (Internet) on the secondary device is not usually used in this scheme.
However, it is worth noting the peculiarity of some modern models. Devices from Asus, Zyxel And TP-Link With new firmware, they can automatically detect the connection type. If you plug the cable into the port WAN, a smart router can automatically switch to Access Point Mode if such a function is built into its software.
| Port on the Main Router | Port on Access Point (Secondary) | Cable type | Result |
|---|---|---|---|
| LAN (1-4) | LAN (1-4) | Straight (Patch cord) | Working diagram (classic) |
| LAN (1-4) | WAN (Internet) | Direct | Works only in special AP mode |
| WAN | LAN | Direct | It doesn't work |
| LAN | LAN | Cross (old) | It works (modern ports auto-detect) |
⚠️ Note: Modern network cards and router ports support Auto-MDI/MDIX technology, allowing you to use any type of twisted pair cable (straight or crossover). However, to ensure stability, use a standard straight-through cable.
After connecting the cable, the port indicators should light or blink, indicating the presence of a physical link. If the indicators don't respond, check the cable for integrity and the tightness of the connectors in the ports.
Performance testing and diagnostics
The final step is testing the created network. Connect your smartphone or laptop to the new access point via Wi-Fi. The device should receive an IP address from main router (check the connection properties: the gateway should match the address of the main router). Open a browser and try accessing any website.
It's also worth checking the visibility of devices on the local network. If you have a network printer or NAS storage connected to the main router, they should also be accessible from a device connected via an access point. This confirms that you've created a unified subnet, not an isolated segment.
☑️ Network diagnostics
If the internet isn't working but Wi-Fi is, check your DNS settings. Sometimes providers require specific settings that aren't transmitted correctly. In this case, you can specify DNS servers (for example, 8.8.8.8) manually in the WAN settings of the main router or in the DHCP parameters.
Advanced Features and Alternatives
Turning a router into an access point is just one way to expand your network. There are other methods, such as using wireless technology. WDS (Wireless Distribution System), which allows routers to be connected wirelessly over the air. However, WDS often cuts speeds in half and is less stable than a wired connection.
For large homes and offices today, it is increasingly used Mesh systemsUnlike a cascade of access points, mesh networks manage clients themselves, switching them to the nearest base station without interrupting the connection. Nevertheless, a router + access point combination remains the most cost-effective and reliable solution for static sites.
If you plan to scale your network in the future, consider installing managed switches and access points with PoE (Power over Ethernet) support. This will eliminate the need to run separate wires for 220V outlets to each access point.
Can I use the WAN port to connect to the main router?
In the classic setup (without a special AP mode in the firmware), using the WAN port will create double NAT. The devices will be on different subnets, making file sharing and printing difficult. Use the LAN port.
Will my internet speed decrease via a hotspot?
With a wired connection, speed losses are minimal (less than 1-2%). Speed reductions are only possible due to cable quality or interference in the air, not due to the connection architecture itself.
Do I need to set up the same network names (SSIDs)?
Not necessarily. If the names are different, you'll have to manually switch between them. If they're the same, the devices will automatically select the stronger signal, but the switch may not happen immediately, or until the signal is completely lost.
What should I do if I lose access to the router menu after setup?
You need to register a static IP address on your computer from the same subnet as the new router address (for example, 192.168.0.5) in order to access its web interface again at 192.168.0.254.
Does IPTV work through such an access point?
Yes, it works because we don't create isolated subnets or use double NAT. Traffic is forwarded transparently. However, make sure your primary router supports IGMP Snooping for multicast traffic to work correctly.