How to create and configure a local Wi-Fi network without internet access

Creation Wi-Fi networks without internet access — a task that arises more often than you might think. Such a network allows you to share files between devices, play multiplayer games, print to a network printer, or control smart devices within your home or office. The main difference from a regular network is the lack of an external connection to the provider, but all local functions are retained.

Many people mistakenly believe that without the internet, a router becomes useless. In fact, modern routers and operating systems support modes Ad-Hoc (dot-to-dot) and SoftAP (software access point), which allow you to set up an isolated network. In this article, we'll cover all the methods—from router settings to creating a virtual network on a smartphone or laptop.

A local Wi-Fi network without internet access is useful in the following situations:

• 📁 You need to quickly transfer large files between computers (movies, projects, backups).
• 🎮 Organize a LAN party in games that do not have an online mode (for example, Minecraft in the local world).
• 🖨️ Connect multiple devices to a network printer or scanner.
• 🏠 Control smart bulbs, cameras, or sensors without cloud services.
• 🔒 Create an isolated network for software or security testing (e.g. for Kali Linux).

Method 1: Configuring the router in "Local network only" mode

The most reliable method is to use a regular router with its internet access disabled. Almost all models (from TP-Link to ASUS) support this mode. You don't need to buy special equipment—your existing router is enough.

The instructions are suitable for most routers with firmware DD-WRT, OpenWRT or standard from the manufacturer. Basic steps:

1. Connect the router to power and log into the admin panel (usually at 192.168.0.1 or 192.168.1.1).
2. Go to the section Network → WAN and turn off your internet connection (set the type Disabled or Static IP without specifying a gateway).
3. In the section Wireless mode set up a network name (SSID), password and channel.
4. Save the settings and reboot the router.

After this, the router will distribute Wi-Fi, but without internet access. All connected devices will be able to "see" each other on the local network. For example, you can access your computer's network drive from your laptop using the protocol. SMB or launch the game by LAN.

Disable WAN connection|Set a unique SSID|Set a password (WPA2/WPA3 recommended)|Select a free channel (e.g. 6 or 11 for 2.4 GHz)|Save and reboot the router

-->

⚠️ Attention: If your router does not have an option to disable WAN, simply do not connect the provider's cable to the port Internet (usually it's highlighted in a different color). The local network will work without it.

Method 2: Virtual Wi-Fi network on Windows (Hosted Network)

If you don't have a router, you can create one software access point directly on your Windows laptop or PC. This is done using the built-in function Hosted Network, which works via the command line. The method is suitable for Windows 7/8/10/11.

Advantages of the method:

• 💻 No router required – just one computer with a Wi-Fi adapter.
• 🔄 You can simultaneously connect to another network (for example, via Ethernet) and distribute Wi-Fi.
• 🔒 All modern safety standards are supported (WPA2-PSK).

Setup instructions:

1. Open Command Prompt as Administrator (press Win + X → Terminal (Administrator)).
2. Enter the command to create the network:

   netsh wlan set hostednetwork mode=allow ssid="MyLocalWiFi" key="12345678" keyUsage=persistent

   Where MyLocalWiFi — the network name, and 12345678 — password (minimum 8 characters).

3. Start the network with the command:

   netsh wlan start hostednetwork

4. Enable connection sharing (if you want the devices to see each other). To do this, go to Control Panel → Network and Internet → Network and Sharing Center → Change adapter settings, find your primary connection (Ethernet or Wi-Fi), right-click → Properties → Access and turn on the option Allow other network users to use this computer's Internet connection (even if there is no internet, this is necessary for local exchange).

If after starting the network the devices do not see each other, check that the IPv4 protocol is enabled in the connection properties and the correct IP addresses are specified (for example, 192.168.137.1 for the host and 192.168.137.X for clients).

⚠️ Attention: On some laptops (especially with adapters Intel (older than 2018) function Hosted Network may not work due to driver limitations. In this case, use third-party programs like Connectify or mHotspot.

Method 3: Local network on Android without a router

Smartphone on Android (version 6.0 and above) can become a local network access point. This method is convenient for quickly sharing files between your phone and other devices.

How to set up:

1. Open Settings → Network & Internet → Hotspot & Tethering.
2. Select Wi-Fi hotspot and set up the network name (SSID) and password.
3. Turn on the hotspot. Now other devices will be able to connect to it.
4. To share files, use apps like Feem, Send Anywhere or built-in FTP server (for example, through Solid Explorer).

Limitations of the method:

• 📵 Devices will not automatically “see” each other on the network (additional applications are required).
• 🔋 Rapid battery drain (recommended to connect to a charger).
• 📶 Limited number of connected devices (usually up to 8).

4. Method: Ad-Hoc network between computers (without a router)

Ad-Hoc (from the Latin "for this") is a Wi-Fi mode in which devices connect directly to each other without an intermediary (router). This method is convenient for connecting two laptops or PCs, but is not supported on modern smartphones.

How to set up on Windows:

1. Open Control Panel → Network and Internet → Network and Sharing Center → Set up a new connection.
2. Select Setting up a wireless computer-to-computer network (V Windows 10/11 This item may be missing - use the command line, as in method 2).
3. Set the network name (SSID), security type (WPA2-Personal) and password.
4. Connect the second device to the created network.

To share files, please enable File and Printer Sharing in the network settings (Settings → Network → Sharing options). After this, you will be able to navigate network paths like \\192.168.X.X in Explorer.

5. Setting up shared folders and printers on a local network

Creating a network is only half the battle. For devices to exchange data, you need to configure public accessLet's consider two scenarios: file sharing and printer connection.

Shared folders on Windows:

1. Create a folder, right-click on it → Properties → Access → Share.
2. Select users (eg. All) and set permissions (Reading or Reading and writing).
3. In the section Security Add the same users and assign permissions.
4. On another computer, open File Explorer and type in the address bar \\Computer_IP_ADDRESS (For example, \\192.168.1.100).

Network printer:

• 🖨️ Connect the printer to one of the computers on the network (via USB or Wi-Fi).
• 📋 Turn on printer sharing (Control Panel → Devices and Printers → Printer Properties → Access).
• 💻 On other computers, add the printer via Devices and Printers → Add a Printer → Network Printer.

⚠️ Note: If shared folders do not open, check that the protocol is enabled on both computers. SMB 1.0 (V Windows 10/11 It is disabled by default for security reasons). You can enable it in Control Panel → Programs → Turn Windows features on or off.

6. Problems and solutions when creating a local Wi-Fi network

Even with proper setup, difficulties can arise. Let's look at the most common ones and how to resolve them.

If the problem is not resolved, try:

• 🔄 Restart all devices and the router.
• 📡 Change the Wi-Fi channel in the router settings (for example, from 6 to 11).
• 🔧 Update your router firmware or Wi-Fi adapter drivers.
• 🛡️ Temporarily disable your antivirus (it may block network communication).

7. Local Wi-Fi network security without the Internet

Many people think that a network without internet access is automatically protected from hacking. This isn't true: if an unauthorized device connects to it, it will gain access to all shared resources. Follow these security guidelines:

• 🔐 Use a complex password (at least 12 characters, with numbers and special characters).
• 📛 Turn off WPS in the router settings - this protocol is vulnerable to brute-force attacks.
• 👥 Limit the number of connected devices by MAC addresses (there is an option in the router settings) MAC filtering).
• 🔄 Change your Wi-Fi password regularly (every 1-2 months).
• 🛡️ Turn it off UPnP, if it is not needed, this will reduce the risk of exploiting vulnerabilities.

For additional protection, you can create guest network on the router (if supported) and connect devices to it that do not need access to shared resources (for example, smart light bulbs).

⚠️ Warning: If you store confidential data (such as work documents) on your local network, use folder encryption using BitLocker (Windows) or VeraCrypt (cross-platform).

FAQ: Frequently asked questions about local Wi-Fi networks

http://192.168.1.100/yeelight?cmd={"id":1,"method":"set_power","params":["on"]}

ipconfig /all # View IP addresses (Windows)
arp -a # View the ARP table (list of devices on the network)