How to set up a local network via a Wi-Fi router in Windows 10

Setting up a local area network between computers in the same apartment or office is a task that may seem complicated only at first glance. Modern operating systems, such as Windows 10, have built-in tools that allow you to connect devices into a single infrastructure without purchasing additional hardware. All you need is for all computers, laptops, or tablets to be connected to a single wireless router. This allows not only for file sharing but also for using shared printers, media libraries, and game servers.

The key element here is precisely Wi-Fi router, which functions as a switch and IP address distributor. Unlike older methods of direct computer-to-computer cable connections, a wireless network via a router provides mobility and stability. The main condition for successful organization is that all devices are located on the same subnet, which is ensured by default by the router's DHCP server. If you configure detection settings correctly, your system will stop seeing other devices as a security threat and allow access to resources.

In this article, we'll walk you through the setup process, from selecting the network type to troubleshooting common connection errors. You don't need to be a system administrator to complete these steps, but you will need to pay attention to interface details. We'll cover both automatic settings and manual TCP/IP settings, which is especially relevant for older router models or specific corporate applications.

Checking the physical connection and network type

Before accessing Windows software settings, you need to ensure that the physical connection is working properly. All devices you plan to connect must be connected to the same access point. This means that if your desktop PC is connected via cable and your laptop via Wi-Fi, they should still be connected to the same router. Check the indicator lights on the router: if the LAN and WLAN lights are lit, a physical connection is established.

The most critical aspect of Windows 10 is defining your network profile. When you first connect to a new Wi-Fi network, the system asks if you want to make your PC visible to others. If you answer "No" or select the "Public Network" profile, Windows will block incoming connections for security purposes. You need to change this status to "Private Network." This can be done through the settings menu:

• 📡 Click the Wi-Fi icon in the tray and select "Properties" for the current connection.
• 🏠 In the window that opens, find the "Network Profile" section and switch the radio button to "Private."
• 🔒 Make sure the "Search for PCs and devices" feature is enabled.
• 🔄 Restart your network adapter to apply the changes.

⚠️ Attention: If you're in a public place (cafe, airport), never select the "Private Network" profile. This will make your files accessible to anyone connected to the same Wi-Fi network, potentially leading to data leakage.

After changing the profile, the system will apply less restrictive firewall rules, allowing the SMB and NetBIOS protocols required for local network operation. Without this step, further settings may have no effect, as the operating system will ignore broadcast requests from other computers.

Configuring TCP/IP and Addressing Parameters

For stable network operation, each device must have a unique identifier—an IP address. In home settings, automatic address distribution is most often used. DHCPHowever, if you plan to frequently share files or set up a network printer, it makes sense to assign static IP addresses. This will prevent a situation where, after rebooting the router, your computer changes its address and becomes unavailable to other network members.

To check the current settings or set them manually, open a command prompt and enter the command ipconfigYou're interested in the "Default Gateway" line (usually 192.168.0.1 or 192.168.1.1) and "IPv4 Address." If the addresses begin with 169.254.xx, it means the router's DHCP server isn't responding, and automatic configuration failed. In this case, you need to access the adapter settings via Control Panel → Network and Internet → Network and Sharing Center.

To configure it manually, select your adapter, click "Properties," then double-click "Internet Protocol Version 4 (TCP/IPv4)." You can enter static values ​​here:

Make sure the last digit of the IP address (the host portion) is unique for each device on the network. If your router's gateway is different from 192.168.1.1, use the first three digits of your gateway, changing only the fourth. After saving the settings, test the connection with the command ping to the address of the neighboring computer.

Enabling file and folder sharing

Once computers "see" each other at the protocol level, data exchange must be enabled. In Windows 10, this is handled by the "Sharing" feature. By default, it may be disabled even on a private network. To enable it, go to Control Panel → Network and Sharing Center → Change advanced sharing settings.

In the window that opens, you'll be presented with several profiles. Find the "Private (current profile)" section and enable the following options:

• ✅ Enable network discovery.
• ✅ Enable file and printer sharing.
• ✅ Allow Windows to manage HomeGroup connections.

It's also recommended to go to the "All Networks" section and enable "Password-protected sharing." This adds a layer of security: when attempting to log in from another computer, the system will require the username and password of the user whose files you're trying to access. Disabling this feature will allow access to any device on the network without authorization, which is convenient for a home media library, but risky.

To share a specific folder, right-click it, select "Properties" → "Sharing" tab → "Advanced." Check "Share" and click "Permissions." Here you can set permissions: Full Control, Modify, or Read-Only. For a home network, "Modify" permissions for the "Everyone" group are usually sufficient.

Troubleshooting computer visibility issues

A common problem in Windows 10 is that computers are connected, the settings are correct, but in the network environment (\\network) they are not displayed. This is because newer OS versions have deprecated the SMBv1 protocol, and discovery services may not start automatically. If automatic discovery doesn't work, try accessing the folders directly by entering the target computer's IP address in File Explorer's address bar.

For diagnostics use the command ping [IP address]If packets are being lost, the problem is at the network or firewall level. If the ping works but the folders are missing, the issue is with services. Click Win + R, enter services.msc and locate services related to SMB and discovery. Ensure that the Discovery Resource Publishing and Discovery Provider Host services are running and have the startup type set to Automatic.

⚠️ Attention: Third-party antivirus programs (Kaspersky, ESET, Avast) often have their own built-in firewalls that block local network connections even if Windows Firewall allows the connection. Check the "Network" or "Local Area Network" settings in your antivirus interface.

Another nuance concerns the computer name. Make sure that PC names on the network are unique and do not contain Cyrillic or special characters if you have older devices (such as network printers or TV set-top boxes). You can change the name through Settings → System → About → Rename PC.

What should I do if Windows asks for a password that doesn't work?

Often, the problem is that the target computer uses a blank password or a Microsoft account. Try creating a local user with a simple password specifically for network access, or disable password protection in Advanced Sharing Settings (not recommended for office environments).

Using network drives for convenience

Constantly entering IP addresses or searching for folders in a network environment can be inconvenient. It's much more efficient to map a shared folder as a network drive. This way, the remote resource will appear in "My Computer" as a separate partition (e.g., drive Z:), making it easier for all programs to access files.

To connect, open "This PC," right-click on an empty space, and select "Add new network drive." In the connection wizard, specify the drive letter and folder path in the following format: \\IP Address\FolderNameBe sure to check the "Reconnect at logon" box so that the drive appears after each reboot.

If the system prompts you for credentials, enter the username and password of the user on the computer where the folder is located. The login format is usually ComputerName\UserNameOnce successfully connected, you'll be able to work with files remotely just like local ones, copying, moving, and editing them.

Optimizing Wi-Fi network speed and stability

Setting up a network via a Wi-Fi router imposes limitations on data transfer speed compared to a cable. Signal loss can occur due to walls, interference from neighboring networks, or household appliances (microwaves, baby monitors). To ensure a stable network, it's important to select the correct broadcast channel. Use utilities like WiFi Analyzer to find the least loaded channel.

If your router is dual-band, use the 5 GHz band for large data transfers. It's less susceptible to interference and offers higher speeds, though it has a shorter range. The 2.4 GHz band is best reserved for IoT devices and smartphones that require coverage rather than speed. Also, make sure the router's "Speed" mode is enabled. WPA2-PSK (AES), as older encryption standards (WEP, WPA-TKIP) can limit network speed.

Don't forget to update your router's firmware. Manufacturers regularly release updates that fix DHCP server issues and improve wireless connection stability. You can check for updates in the router's web interface, accessible via the gateway address.

Why is the network copy speed slow?

Speed ​​may be limited by Wi-Fi bandwidth (actual speed is usually 2-3 times lower than the advertised speed), CPU load during encryption, or network adapter power saving settings. Try disabling power saving in the Wi-Fi driver properties.

Is it possible to connect computers on different routers?

Yes, if you configure the second router in Access Point (AP) mode and connect them with a cable, or use WDS/Mesh technology if the routers support wireless networking. In this case, all devices will be on the same subnet.

Is it safe to share files in Windows 10?

It's safe if you're on a trusted home network and using the "Private" profile. Be sure to set passwords on user accounts and update your security system regularly.