What to do with an old Wi-Fi router: 10 useful ideas for home and office

An old Wi-Fi router gathering dust on a shelf or in a desk drawer isn't trash, but a potentially valuable device. Even if it doesn't meet modern standards. Wi-Fi 6 or 5 GHz, it can be adapted to new tasks. In this article, we will analyze 10 Proven Ways to Put Your Outdated Router to Good UseFrom signal boosting to creating a smart home - without unnecessary costs.

The main advantage: you don't need to buy additional equipment or pay for subscriptions. All you need is basic networking knowledge and 15-30 minutes of your time. And if your router is really old (for example, TP-Link TL-WR740N or D-Link DIR-300), we'll show you how to get the most out of it, even with its limited specifications.

1. Turn your router into a repeater (Wi-Fi amplifier)

The most popular way is to use an old device for expanding Wi-Fi coverageThis is relevant if the signal is weak or disappears completely in some rooms. Most routers support this mode. Repeater (repeater) or WDS (wireless distribution system).

How to set up:

  • 🔌 Connect the router to your computer via cable LAN and go to its web interface (usually at 192.168.0.1 or 192.168.1.1).
  • 🔄 Find the section in the menu Wireless → Repeater or Operation Mode and select the repeater mode.
  • 🔍 Enter your primary network details (name SSID and password).
  • 📡 Place the device halfway between the main router and the “dead zone”.
⚠️ Please note: In repeater mode, internet speed may decrease by 30–50% due to double signal conversion. For critical tasks (such as online gaming), it is better to use cable bridge (section 3).

Some models (eg Asus RT-N12 or Xiaomi Mi Router 3) support the regime Mesh — This is a more advanced alternative to a repeater, allowing multiple devices to operate as a single network without any speed loss. Check your firmware for this feature.

📊 What is the brand of your old router?
TP-Link
Asus
D-Link
Xiaomi
Zyxel
Another

2. Set up a guest network for security

If you have guests, friends, or devices with questionable security (such as smart light bulbs or IP cameras), the old router can be used as isolated guest pointThis will protect the core network from potential data leaks or viruses.

Algorithm of actions:

  1. Connect the old router to the main one via the port LAN-LAN (Not WAN!).
  2. Disable it in the settings DHCP on the secondary device so that only the main router distributes IP addresses.
  3. Create a new network with a unique SSID (For example, Guest_WiFi) and password.
  4. In the section Firewall or Access Control Disable access to local resources (printers, NAS).

The advantage of this approach is that even if the guest network is hacked, the attacker won't have access to your personal data. And if the router supports VLAN (virtual networks), you can configure even more flexible isolation.

3. Create a bridge between networks (LAN-to-LAN)

If you have two routers, you can connect them via cable or Wi-Fi to expand the number of ports. LAN or combine two networks. This is useful, for example, for:

  • 🖥️ Connecting a desktop PC in another room without running a long cable.
  • 🎮 Organizing a separate network for gaming consoles (PlayStation, Xbox) with traffic priority.
  • 📼 Connections NAS servers or IP cameras to the main network.

To configure the bridge:

  1. On the main router, record the IP address for the secondary device in the section DHCP Reservation.
  2. On the secondary router, disable DHCP and change its IP address (for example, if the main router has 192.168.1.1, install 192.168.1.2).
  3. Connect the devices with a cable LAN-LAN (do not use the port WAN!).
⚠️ Note: When using a wireless bridge (Wi-Fi), speed may decrease due to traffic encryption. For stability, it's better to use a cable. Ethernet.
What is the difference between a bridge and a repeater?

A LAN-to-LAN bridge connects two networks at the data link layer, keeping all devices on the same subnet. A repeater simply rebroadcasts the Wi-Fi signal, creating a separate access point with a different SSID (unless configured as a mesh network).

4. Set up a home VPN server for security

If your router supports OpenVPN or WireGuard (for example, models on firmware DD-WRT, OpenWRT), it can be turned into a VPN server. This will allow you to:

  • 🔒 Securely connect to your home network from anywhere in the world (for example, to access files on a NAS).
  • 🌍 Bypass geoblocks (if the server is located in another country).
  • 🛡️ Encrypt traffic on public networks (hotels, airports).

Instructions for OpenWRT:

opkg update

opkg install openvpn-openssl


cd /etc/openvpn


wget https://raw.githubusercontent.com/OpenVPN/easy-rsa/master/easyrsa3/easyrsa --no-check-certificate


chmod +x easyrsa

After installation, you need to generate certificates and configure the configuration file. server.confDetailed manuals are available on the official forums. OpenWRT or DD-WRTTo make things easier, you can use ready-made scripts, for example, PiVPN (if the router is based on Raspberry Pi).

Update your firmware to the latest version

Check for free space (minimum 10 MB)

Open port 1194 (UDP) in your firewall settings.

Create a backup of your current settings

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5. Organize a smart home using a router

An old router can become central hub To control smart devices: light bulbs, sockets, sensors. To do this, you'll need:

  • 💡 Firmware with support MQTT (For example, OpenWRT + mosquitto).
  • 📱 Management app (eg. Home Assistant or Node-RED).
  • 🔌 Smart devices with support Wi-Fi or Zigbee (the latter will require a USB adapter).

Example of setup Home Assistant on the router:

  1. Install OpenWRT and connect an external storage device (flash drive or HDD).
  2. Install Docker and unfold the container with Home Assistant:
    3. docker run -d --name="home-assistant" -v /path/to/config:/config -e TZ=Europe/Moscow --net=host homeassistant/home-assistant:stable
  3. Connect smart devices via Integrations in the web interface.

The advantage of this solution is that all data remains on the local network and is not sent to the cloud (as with many “boxed” solutions like Xiaomi Mi Home).

6. Use as a file server (NAS)

If you connect an external hard drive or flash drive to the router, it can be turned into network storage (NAS). This is convenient for:

  • 📁 Sharing files between devices on your home network.
  • 🎬 Storage of media library (movies, music) with access via DLNA.
  • 🔄 Automatic backup from phones or PCs.

Setting up (using an example) Asus RT-N66U):

  1. Connect the drive to the port USB router.
  2. In the web interface, go to USB Application → Network Place (Samba).
  3. Create a shared folder and set access permissions.
  4. On your PC or phone, connect to the path \\192.168.1.1\share (replace IP with the current one).
⚠️ Note: USB 2.0 read/write speeds will be slow (5–10 MB/s). For larger files, it's better to use a Gigabit port. LAN and a disk connected to the PC.
Router model Max. disk capacity DLNA support USB speed
TP-Link Archer C7 2 TB Yes USB 2.0 (up to 10 MB/s)
Asus RT-AC68U 4 TB Yes (AiPlayer) USB 3.0 (up to 30 MB/s)
Zyxel Keenetic Giga 8 TB Yes (media server) USB 3.0 (up to 40 MB/s)

7. Launch a torrent client or downloader on your router

If your router supports USB and has a fairly powerful processor (from 600 MHz), you can expand it torrent client or download managerThis will eliminate the need to keep the PC turned on.

Popular solutions:

  • 📥 Transmission — a lightweight torrent client for OpenWRT.
  • 📦 Aria2 — universal bootloader with support HTTP/FTP/BitTorrent.
  • 🌐 — a full-fledged client with a web interface (requires more resources).

Installation example Transmission on OpenWRT:

opkg update

opkg install transmission-web


/etc/init.d/transmission enable


/etc/init.d/transmission start

After installation, the web interface will be available at http://192.168.1.1:9091. The settings are saved in the folder /etc/transmissionTo automatically download files to an external drive, configure the setting "download-dir" in the config settings.json.

8. Sell or rent it out (if the router is still working)

If the device is in good condition, it can be sell, rent out or exchange to other equipment. Here's where it's beneficial:

  • 💰 Avito/Yula: Old routers are bought for summer houses, offices, or as spare ones.
  • 📦 Enthusiast forums: models with support DD-WRT are valued above market value.
  • 🔄 Rental services: Some companies rent out routers to tourists or temporary residents.

Average prices on the secondary market (2026):

Model State Price, ₽
TP-Link TL-WR841N Used, working 800–1 200
Asus RT-N12 Excellent, with DD-WRT firmware 1 500–2 000
Zyxel Keenetic Lite After warranty, factory reset 1 000–1 500

Before sale:

  • Reset to factory settings (Reset button for 10 seconds).
  • Wipe the body with an alcohol wipe.
  • Take photos of the device from different angles (especially ports and indicators).
  • Please indicate supported standards in the description (802.11n, AC) and maximum speed.
⚠️ Attention: If the router was connected to a corporate network, delete all logs and settings before selling it. VLAN/VPNto avoid data leakage.

FAQ: Frequently asked questions about older routers

Is it possible to use a router without the Internet, only for a local network?

Yes. Disconnect the cable. WAN and configure the router as a switch: disable DHCP, assign a static IP (eg. 192.168.1.2) and connect the devices via LANLocal traffic will work without internet access.

How do I check if my router supports alternative firmware?

Check out the model on the websites:

Please note the hardware version (eg. TP-Link TL-WR1043ND v1 vs v4) - support may vary.

Should you use your old router as an access point for IoT devices?

Yes, but with some reservations:

  • Dedicate a separate network for IoT with limited access to the main one.
  • Turn it off WPS and use WPA3 (or at least WPA2 With AES).
  • Update your firmware regularly—many IoT devices are vulnerable to attacks through outdated protocols.

How do I reset my password if I forgot my old router's password?

Reset methods:

  1. Hard reset: hold down the button Reset for 10–15 seconds (until the indicators blink).
  2. Soft reset: If you have access to the web interface, find the section System Tools → Factory Defaults.
  3. For some models (Zyxel Keenetic) you can use the utility Keenetic Recovery.

After the reset, the login data will be standard (usually admin/admin or admin/blank password).

Is it possible to combine two old routers into a mesh network?

Theoretically yes, but with limitations:

  • Both devices must support 802.11k/v/r (seamless roaming).
  • It's better to use firmware OpenWRT or DD-WRT with module 802.11s.
  • The actual speed will be lower than that of specialized Mesh systems (TP-Link Deco, Google Nest WiFi).

Models are suitable for experiments Asus RT-AC66U or Linksys WRT1900ACS.

📖 Read also

What is the Wi-Fi password? How to find out, view, or reset it How to find your Wi-Fi password? Instructions: where to find it on a router, Android phone, or iPhone How to Limit Wi-Fi Speed ​​on a Keenetic Router: A Complete Guide Detailed instructions for limiting internet speed on Kinetic routers. Configuring QoS and priority What is WMM in WiFi? Setting up traffic priority. Find out what WMM is in your WiFi router settings. How QoS technology speeds up games and videos, and how it's worth it. How to flash an MTS router: complete instructions and firmware Learn how to flash your MTS Wi-Fi router. Step-by-step instructions for updating software and restoring your device. How to connect a PC to a Wi-Fi network: a complete guide A detailed guide: how to add a computer to a local network via Wi-Fi. Router setup, Windows, How to reset a Huawei router to factory settings: step-by-step instructions Detailed instructions for resetting a Huawei router using the Reset button, web interface, and HiLink app.