In situations where the main router doesn't cover the entire home with its signal, or where you need to create a separate, segmented network for guests and a smart home, using a second router in access point mode is an ideal solution. TP-LinkAs a leader in the networking equipment market, TP-Link offers users extensive flexibility in configuring their devices, transforming them from full-fledged routers into simple signal repeaters. This approach allows for expanded coverage. WiFi without loss of speed and the need to lay additional cables to each client device.
The advantage of this method is that all devices connected to the second router will be on the same local network as the primary gateway, providing access to printers, network storage, and other resources. However, to implement this scenario, the device's operating mode must be correctly modified, as the default out-of-the-box settings require creating its own subnet with shared access. IP addresses, which in this case will lead to conflicts. Understanding the logic behind network layers will help you avoid common mistakes and ensure stable communication throughout the entire room.
In this article, we'll walk you through the process of repurposing a TP-Link router, focusing on changing the IP address, disabling DHCP services, and properly connecting the cables physically. Configuration The steps may vary slightly depending on the firmware version and the specific model, whether it's Archer or older TL-WR series, but the basic principles remain the same for all equipment from this manufacturer. Following these steps will allow you to create a unified, seamless network in minimal time.
Equipment preparation and physical connection
Before beginning the software setup, you need to properly prepare the equipment and establish a physical connection between the devices. You'll need a primary router that already distributes internet, and a second TP-Link router that will act as an access point. For the initial setup, we recommend using a computer or laptop with a network port. Ethernet, as this ensures a stable connection without interruptions that sometimes occur when setting up wirelessly.
It's important to understand the cable connection diagram at this stage: you shouldn't connect the devices directly to each other until the setup is complete to avoid IP address conflicts if both devices are in default router mode. First, connect your computer to the TP-Link device's LAN port, then log in to its web interface. Only after making all the necessary software changes should you connect the WAN port of the main router and the LAN port of the device being configured with a network cable.
Make sure that the cable you plan to use to connect the routers is in good condition and meets modern standards, for example, it has a category Cat5e or higher to maintain high data transfer rates. If the cable is damaged or has a low rating, you may not achieve the expected speed even with ideal software settings. Testing the integrity of the twisted pair cable is a simple step that is often overlooked, leading to false conclusions about equipment failure.
☑️ Preparing for setup
Login to the web interface and reset settings
The first step in the configuration process is to log into the device's control panel. Open any modern browser on the connected computer and enter the default address in the address bar, which is usually found on a sticker on the bottom of the device. For most modern TP-Link models, this can be a domain name. tplinkwifi.net or classic IP address 192.168.0.1 or 192.168.1.1If the default addresses don't work, check your adapter's network settings, where the device's current address will be specified as the default gateway.
After entering the address, the system will request authorization. The factory login and password are also indicated on the device label, most often it is admin/adminIf you've previously changed this data and don't remember it, or if the device has been used before, you'll need to perform a hard reset. To do this, find the button Reset (often recessed into the case), press it with a paperclip and hold it for about 10 seconds until the indicators flash simultaneously. This will reset the device to factory settings and allow you to start setup from scratch.
⚠️ Note: After resetting the settings, the wireless network will revert to the factory name and password indicated on the sticker. You will need to reconnect to it from your mobile device or laptop to continue setup via the web interface.
After successful authorization, you'll be taken to the main interface page, which may look different depending on the firmware version (the green interface on older models or the blue/white interface on newer versions). Your goal is to find the section responsible for operating mode or system settings. In newer interfaces, these are often located on the main screen or in the menu. Advanced → System Tools → Operation Mode, where you can select the desired option with one click, which makes life much easier for the user.
Changing the IP address of a local network
A critical step is to change the IP address of the TP-Link device itself so that it doesn't conflict with the main router's address. By default, both devices may have the same address, for example, 192.168.0.1, which will result in the inability to access the internet and loss of access to the control panel. You need to go to the section Network → LAN (Network → Local Area Network) and change the last octet of the address to a unique value, for example, 192.168.0.254 or 192.168.0.2, provided that the main router is located at the address 192.168.0.1.
If the main router has addressing in the subnet 192.168.1.x, then the second device needs to be assigned an address from the same subnet, but different, for example, 192.168.1.254The main rule here is that the first three numbers of the address must match the default gateway address, and the last number must be unique within the network and not match the range assigned by the main router's DHCP server. This will ensure that you can access the access point's settings in the future by simply entering the new address in your browser.
What to do if you forgot your new IP address?
If you've changed your router's IP address and forgotten it, and internet access is lost, the only reliable way to restore the settings is to perform a hard reset using the Reset button. Afterward, the device will revert to the factory address indicated on the sticker, and you'll have to repeat the IP change procedure. To avoid this, write down new addresses immediately after changing them or use static IP addresses on your computer for administration.
After changing the address and saving the settings, the device will reboot, and you will lose connection. This is normal. You will need to manually change the IP address of your computer's network adapter or simply reconnect by entering the device's new address in your browser. Your computer and the access point are now on the same logical network, which is the foundation for further work.
Disabling the DHCP server
One of the most common mistakes when creating an access point is leaving the DHCP server enabled on the second device. There should only be one active server distributing IP addresses on the network, and this function is performed by the primary router. If DHCP is left enabled on the TP-Link, devices will receive incorrect gateway and DNS settings, resulting in no internet connection despite being connected. Go to the menu DHCP → DHCP Settings and select the option Disable (Disable).
After disabling the DHCP service, your TP-Link router will no longer assign addresses to connecting clients, but will instead forward their requests to the default gateway. It will effectively become a transparent bridge between wireless clients and the wired network. Don't forget to save the settings by clicking the button. SaveSome models may require a device reboot for the changes to take effect, and the system will notify you of this with a notification.
It's important to note that after disabling DHCP, you'll only be able to manage the access point using the static IP address you set in the previous step. If you try to connect to it automatically, your computer may not receive an address and won't see the device, so make sure you remember the IP address you set (e.g., 192.168.0.254). This knowledge is necessary for any future WiFi maintenance or password change.
Setting up a wireless WiFi network
Now that the network portion is configured, you need to configure the wireless module. Go to the section Wireless → Wireless SettingsHere you can set the network name (SSID). You can name the network the same as the main one to create a roaming effect (although full roaming without a controller won't work; devices will switch automatically), or give it a unique name, for example, by adding the suffix "_Ext" to identify which access point you're connected to. The choice of name depends on your personal preferences and the layout of your room.
In the security section Wireless Security Be sure to choose a modern encryption protocol WPA2-PSK or WPA3, if your devices support it. Using legacy WEP encryption or an open network will make your data vulnerable to interception. Create a complex password consisting of letters and numbers and enter it in the field. PSK PasswordThis is the password your guests and your devices will enter to connect to the extended coverage area.
It's also worth paying attention to the wireless channel. If you're in an apartment building where the airwaves are clogged with neighbors' signals, it's recommended to select a fixed, less congested channel, or leave the setting unchanged. Auto, if the router can independently assess the airborne noise level upon startup. Selecting the right channel can significantly improve connection stability and network response time.
Access Point mode in new interfaces
It's worth mentioning separately that in modern TP-Link models with an updated blue or white web interface, the process can be even simpler thanks to automation. In the menu Advanced → Operation Mode there is often a ready-made template Access PointWhen you select this mode, the router will prompt you to change the IP address and disable the DHCP server, performing these actions automatically after a reboot.
Using the built-in mode is preferable to manual configuration, as it ensures that all system services are reconfigured correctly, including any NAT and firewall issues. If your model supports this feature, use it to save time. However, understanding the manual method described above is necessary for working with older equipment or specific scenarios where the automatic configuration fails.
After selecting Access Point mode and applying the settings, the device will reboot. The interface may become accessible via a new address, either suggested by the system or specified by you during setup. From this point on, the device is ready to work with the main router, accepting clients via WiFi and forwarding traffic further via cable.
Final connection and testing of operation
The final step is to physically connect the devices. Take a network cable and plug one end into any LAN port the main router (which distributes the Internet), and the other end is in LAN port A configured TP-Link router. Please note: in access point mode, the WAN port (usually blue) on TP-Link is often unused or blocked by software, so the connection is established through the LAN ports (yellow), unless you've used the special "Access Point" mode, which allows the WAN port to function as a LAN.
After connecting with a cable, the port indicators should light up or blink, indicating a link. Test the network by connecting your smartphone or laptop to the created WiFi network. The device should receive an IP address from the main router (you can check this in the connection details), and the internet should be working. Try opening several websites to check the speed and access to local resources.
| Parameter | Main router | TP-Link (Access Point) |
|---|---|---|
| IP address | 192.168.0.1 | 192.168.0.254 |
| DHCP Server | Enabled | Disabled |
| Connection type | WAN (from provider) | LAN (from the main router) |
| WiFi SSID | Home_Main | Home_Ext (or the same) |
If the internet still isn't working, check the IP addresses again and ensure the default gateway on client devices points to the main router's address, not the access point. It's also worth checking whether the main router is blocking new devices by MAC address (Blacklist/Whitelist feature), which sometimes happens on corporate or strictly configured home networks.
Diagnosis and solution of typical problems
During operation, situations may arise where the access point stops responding or the connection speed drops. A common cause is a stuck router firmware, especially on budget models. In such cases, periodically rebooting the device can help. If the problem persists, the device may be overheating, and it's worth reconsidering its location to ensure better airflow.
Another issue could be a time or DNS cache desynchronization. If websites are loading slowly or displaying DNS errors, try entering public DNS servers, such as Google's, in the DHCP settings of your main router or manually on your clients (8.8.8.8) or Cloudflare (1.1.1.1). This often solves problems with access to certain resources.
⚠️ Note: Interfaces and menu item names may vary depending on the firmware version and specific router model. Always consult the official documentation on the manufacturer's website if you cannot find the item you're looking for.
If you cannot find the device on the network after setup, use network scanning utilities such as Advanced IP Scannerto find the device by the MAC address listed on the sticker. This will help you identify the new IP address if you've forgotten the one you assigned, or ensure that the device is visible on the local network.
Can I use the WAN port on my TP-Link router as an access point?
In standard operating mode ("Router"), the WAN port is used to connect to the ISP. However, if you've manually disabled DHCP and changed the IP address, using the WAN port to connect to the main router will create a double NAT, which is undesirable. The cable must be connected to the LAN port. The exception is the special "Access Point" mode in newer firmware, which software-based reassigns the WAN port to act as a LAN port, allowing any port to be used for incoming connections.
Will the guest network work on the access point?
Guest network functionality is typically a feature of the main router. It's difficult to create an isolated guest network separate from the main network on an access point operating in bridge mode, as it simply forwards traffic. If you need to isolate guests, configure the guest network on the main router and use the access point only to extend the coverage of the main or guest network, not as a separate gateway.
Will my internet speed decrease via a hotspot?
When connecting the access point to the main router via a wired connection (LAN-to-LAN), speed losses are minimal and depend solely on the quality of the cable and ports (100 Mbps or 1 Gbps). If you use repeater mode (wireless), speeds can drop by 50% or more, as the radio module operates in half-duplex mode. The cable method described in this article ensures maximum performance.
What should I do if I forgot my WiFi password after setup?
If you haven't written down the new password and need to connect, you can temporarily connect to the router via cable and access the web interface using the IP address you assigned (e.g., 192.168.0.254). In the Wireless Security section, you can view or change the password. If cable access isn't configured, you'll need to press the Reset button.