How to set up access to a local network via WiFi

It is impossible to imagine a modern home without a stable wireless connection that unites computers, laptops, smartphones and smart devices into a single ecosystem. Organization local network Using WiFi opens up a wide range of possibilities for users, from quickly transferring files between devices to playing online games or sharing a printer. Despite its apparent complexity, the configuration process doesn't require extensive networking knowledge and only takes a few minutes.

In this article, we'll cover in detail how to properly prepare your equipment and configure your router and operating system settings so all your devices can "see" each other. It is important to understandWe understand that data security in a local environment is just as important as data transfer speed, so we'll focus on methods for protecting your home network's perimeter from unauthorized access.

To get started, make sure all devices you plan to connect are connected to the same wireless router. If the computers are on different subnets or one of them is sharing internet from a phone, the standard local data exchange scheme won't work. The key condition for successful setup is that all devices are located in the same IP range, issued by one router.

Preparing equipment and checking connections

The first step to creating a fully functional LAN environment is to check the physical status and basic settings of your router. Make sure the router is powered on, the indicators are illuminated normally, and the wireless module is enabled. Users often forget that for local file sharing to work correctly, guest access (Guest Network) must be disabled, as it isolates clients from each other for security reasons.

Check whether the devices can see each other at a basic level. You can do this using a simple ping command in the command line. If there's a response, the physical connection is working properly, and the issue lies with Windows or antivirus software settings. Otherwise, reboot the router and reconnect to the WiFi.

Don't forget about the role of antivirus software, which can block local connections, considering them potentially dangerous. During initial setup, it's recommended to temporarily set the network profile to "Private" or "Home" mode, which will automatically open the necessary ports for device detection.

⚠️ Note: If you are using a corporate router or a complex system with VLANs, the default setting may be blocked by administrative policies. In such cases, please contact your system administrator before making any changes.

Make sure the protocol is enabled on all devices. IPv4, as this is the most common addressing type used in home networks. Double-clicking the network icon in the tray will quickly check the current IP address and ensure it begins with the prefix 192.168 or 10.0, which is standard for most home routers.

Basic router setup for local sharing

The central element of any wireless network is the router, which distributes traffic and IP addresses. For the local network to function correctly, you need to log into the device's web interface. This is usually done by entering the address. 192.168.0.1 or 192.168.1.1 in the browser's address bar. Your username and password are usually located on a sticker on the bottom of your device, unless you've changed them previously.

In the wireless settings (Wireless Settings) Make sure "AP Isolation" or "Client Isolation" is disabled. This feature is designed for hotels and cafes to prevent guests from seeing each other's devices, but in home use, it completely blocks the ability to set up local data exchange.

It's also worth checking your DHCP server settings. This is what automatically assigns addresses. Make sure the address pool is large enough to cover all your devices. If you plan to use static IP addresses for servers or printers, reserve them in the appropriate section to prevent address conflicts.

The table below shows typical parameters that should be set for stable operation:

Configuring network settings in Windows

After checking the router, you need to configure the operating system. In Windows 10 and 11, this is done through the Network and Sharing Center. Right-click the network icon and select Properties. Here, it's crucial to change the network profile from "Public" to "Private."

In the public profile, the system blocks detection, thinking you're at an airport or a cafe. Switching to the private profile tells the system you're in a trusted environment and opens ports for discovery services. Without this step, computers simply won't see each other in the list of available devices.

Next, go to "Advanced sharing settings." Here, you need to enable network discovery and file and printer sharing. It's also recommended to enable manage network connections so Windows can automatically configure connected devices.

• 🔹 Enable network discovery and automatic configuration of connected devices.
• 🔹 Enable file and printer sharing.
• 🔹 Allow Windows to manage HomeGroup connections.
• 🔹 Disable password-protected sharing (only for trusted home networks).

If you disable password protection, anyone who connects to your WiFi will be able to access shared folders. It's convenient for home, but dangerous in the office. or in an apartment building with poor WiFi security. In such cases, it's best to create a separate user with access rights.

Organizing shared access to folders and files

Once the network settings are configured, you can begin sharing specific resources. Select the folder you want to make available to other network users. Right-click it, select "Properties," and then go to the "Sharing" tab.

Click the "Advanced Settings" button and check "Share this folder." In the "Permissions" menu, you can fine-tune who can do what with files: read only, modify, or have full control over the contents. For simple document sharing, "Read" permissions are sufficient.

There's also a quick way to share via the "Sharing" tab, where you can select specific users from a list or the "Everyone" group. Selecting "Everyone" makes the folder visible to every device on the network, simplifying the setup of media servers or storage for family photo archives.

⚠️ Caution: Do not grant full permissions (Write/Modify/Delete) to system folders or the C: drive. This may lead to critical operating system errors or ransomware infections.

To access a shared folder from another device, open File Explorer and enter in the address bar \\ComputerName or IP addressIf everything is configured correctly, you will see a list of available resources. For convenience, you can right-click the folder and select "Mount as network drive" to make it appear as a separate drive in My Computer.

Setting up a shared printer and peripherals

One of the most useful features of a local network is the ability to print from any device to a single printer. If you have a printer connected to one of your computers via USB, you can make it a network printer. To do this, go to "Settings" -> "Devices" -> "Printers & Scanners."

Select the desired printer, click "Manage," and go to "Printer Properties." On the "Sharing" tab, check "Share this printer." Give it a descriptive name to avoid confusion in the list of devices, especially if you have multiple models on your network.

On other computers, to install a network printer, go to the Add Devices section and select "The printer I want isn't listed." Select Search by Name and enter the path to the printer in the following format: \\HostComputerName\PrinterNameThe system will automatically install the necessary drivers.

What to do if drivers are not found?

If Windows can't find the driver automatically, download the full driver package from the printer manufacturer's website to the computer it's connected to. During installation, select the "Network Printer" connection type and specify the path.

Modern network printers with WiFi or Ethernet support don't require a PC connection. They connect directly to the router. In this case, there's no need to set up sharing—simply install the driver on the client machines, specifying the printer's IP address. This reduces the load on the host computer and makes printing available even when the PC is turned off.

Diagnosing problems and troubleshooting errors

Even with proper configuration, situations may arise where devices don't see each other. One common cause is the operation of discovery services. In Windows, this is handled by the service Function Discovery Resource PublicationIt may be disabled by default.

To activate, click Win + R, enter services.msc and find the specified service in the list. Set the startup type to "Automatic" and start the service. Also check the "SMB 1.0/CIFS Support Service" service if you are connecting very old devices or network-attached storage (NAS).

Windows Firewall or a third-party antivirus program may be blocking the connection. Try temporarily disabling them to test. If the problem resolves, add an exception for "File and Printer Sharing" to the firewall rules instead of keeping protection disabled.

• 🔹 Check if the Function Discovery service is enabled.
• 🔹 Make sure that the computers are in the same workgroup (usually WORKGROUP).
• 🔹 Check if your antivirus is blocking your local network.
• 🔹 Restart the DNS Client service with the command ipconfig /flushdns.

If all else fails, try resetting your network settings. In Windows 10/11, you can do this via Settings -> Network & Internet -> Status -> Network Reset. This will reset all network adapters and settings to factory defaults, which often resolves hidden conflicts.

Local network security via WiFi

Open file access is convenient, but potentially dangerous. If an intruder connects to your WiFi, they could access your documents or launch a virus. Therefore, using a strong WiFi password with encryption is essential. WPA2/WPA3 is a mandatory minimum.

For additional security, create separate Windows users with limited privileges for network access. Don't use the administrator account for sharing. Keep account passwords complex, especially if you've disabled password protection in the sharing settings.

Update your router firmware regularly. Manufacturers often patch vulnerabilities that could allow access from the local network to the global network or traffic interception. It's also recommended to disable the WPS function, as it's considered insecure and easily hacked.

⚠️ Note: Router interfaces and operating system versions are constantly updated. The location of settings may differ from those described. Always consult your device's official documentation if you cannot find the menu item you need.

Use a guest network for friends' devices or IoT gadgets (smart lightbulbs, kettles) that don't need to be connected to your main computers. This will create an additional layer of isolation and protect your personal data from potentially vulnerable smart devices.

Frequently Asked Questions (FAQ)

Why can my computer see the network but not other computers?

Most likely, your network profile is set to "Public." Switch it to "Private" in the network settings. Also, check that the Function Discovery Resource Publication service is enabled and that your antivirus software isn't blocking the connection.

Is it possible to set up a local network between Windows and macOS?

Yes, this is possible. On a Mac, you need to enable "File Sharing" in System Preferences. On Windows, you may be asked to enter your Mac username and password when connecting. The SMB protocol is supported by both systems.

Does a local network affect internet speed?

The local network settings themselves don't affect internet speed. However, actively transferring large files (movies, backups) over WiFi will consume the entire wireless channel, which may temporarily reduce internet speed on other devices.

How do I hide a folder from other users while leaving it accessible only to myself?

When setting up sharing, don't select the "Everyone" group. Add a specific user with access permissions and set a password. Alternatively, use encrypted cloud storage for personal data.

Is internet required for a local network to function?

No, internet access is not required. The local network works between devices via a router, even without a connection to the ISP's global network. You will be able to transfer files and print documents, but you won't be able to access the web.