How to Create a Wi-Fi Network with Two Computers: A Step-by-Step Guide

Setting up a local network between two computers is a basic skill that allows you to instantly transfer large files, play games over a LAN, or share a printer without unnecessary wires. In the age of cloud storage, many forget that direct Wi-Fi channel Between devices, a connection often provides much higher data transfer speeds than a provider's internet connection. This is especially important for designers, video makers, and gamers, for whom every second counts.

Modern operating systems such as Windows 10 And Windows 11We've significantly simplified this process by hiding complex settings deep within the menu, but the basic principles remain the same. You don't need to be a system administrator to set up data exchange. Understanding the logic is sufficient. IP addresses and properly configure your network profile. In this article, we'll cover all the details, from choosing equipment to solving common device visibility issues.

Before starting software setup, make sure both devices are connected to the same router. If you plan to connect the laptops directly, without a router, you'll need to create a virtual access point. Wireless network must be stable, since any interruptions in the signal will lead to a break in the connection during data transmission.

Selection of equipment and preparation of infrastructure

The foundation of any local area network is hardware. To connect two computers via Wi-Fi, you first need router (router), which will act as a central hub distributing traffic. If you don't have a router, you can use computer-to-computer mode, but this is a less stable option and requires manual IP address configuration on each device.

Both computers must be equipped with working Wi-Fi adaptersModern laptops come with these built-in, while desktop PCs may require an external USB dongle or PCIe card. It's important to update your network drivers to the latest version, available on the manufacturer's website.

• 📶 Router: It is recommended to support 802.11ac (Wi-Fi 5) or later for high speed.
• 💻 Adapters: Both PCs must operate in the 5 GHz band to minimize interference.
• 🔌 Nutrition: Please make sure your laptops are charged or connected to the network to avoid any transfer interruptions.

⚠️ Attention: When using corporate or dorm networks, administrators often block local file sharing (P2P) at the hardware level. In such cases, creating a network between two PCs will be impossible without network administrator rights.

The distance between devices also plays a role. For stable operation local network It's advisable to place computers within a strong signal coverage area. Walls made of reinforced concrete or the presence of powerful radiation sources (microwaves, radios) can significantly reduce channel throughput.

Setting up a network profile in Windows

The first step in software setup is changing the network profile. By default, Windows treats new connections as public, which prevents other devices from seeing your computer. You need to change the network type to "Private" (Private). This action tells the system that you are in a trusted environment.

To do this, go to the "Settings" menu and select "Network & Internet." In the list of active connections, find your Wi-Fi and change the profile from "Public" to "Private." After this, the operating system will allow your PC to be discovered by other devices on the same network. subnets.

Next, you need to enable sharing features. Open Control Panel, go to Network and Sharing Center, and select Change advanced sharing settings. Here, enable network discovery and file and printer sharing for the current profile.

Control panel\Network and Internet\Network and Sharing Center\Advanced sharing settings

Don't forget to save your changes by clicking the corresponding button at the bottom of the page. Without this step, your computer will be unable to receive requests from the second device, even if the IP addresses are forwarded correctly. Windows Firewall may also require permission to operate on a private network.

Setting up IP addressing and sharing

For computers to "see" each other, they must be on the same subnet. Typically, a router automatically assigns addresses via DHCP server, and manual intervention is not required. However, if automatic configuration fails, addresses can be assigned statically.

You can check your current settings via the command line. Enter the command ipconfig and find the "IPv4 Address" line. The first three numbers of both computers' addresses should match (e.g., 192.168.1.X), but the last number should be different. The last number should not match either the gateway address or the address of the other computer.

If you configure static addresses manually, do so carefully. An incorrect subnet mask will cause devices to think they are on different networks, and the connection will fail. Static IP Useful if you plan to create a network regularly, so you don't have to look up the address every time.

Expanding Shared Folders and Access Permissions

Once the network infrastructure is set up, you need to grant access to specific resources. Simply enabling the network isn't enough—you must explicitly specify which folders or drives will be accessible to the second computer. This is done through the folder properties on the "Access" tab.

Select the folder, right-click, and select "Properties" → "Sharing" → "Advanced." Check "Share this folder." Under "Permissions," ensure that "Everyone" has read or write permissions, depending on your needs.

⚠️ Attention: Granting full read and write permissions to the "Everyone" user on an unsecured network can be risky. If you're in a public place, consider using password protection or creating specific users.

An alternative and more modern method is to use the "Shared Folders" feature in the Windows Settings app. This method is less susceptible to NTFS permissions errors. You can also use the protocol SMB, which is the standard for Windows networks.

To access files on the second computer, open File Explorer and enter in the address bar \\Neighbor's IP address (For example, \\192.168.1.11). If everything is configured correctly, you will see the shared folders. The system may request the username and password of the user account on the remote PC.

What to do if Windows requires a password?

Windows often requires credentials even on a local network. Enter the username and password for the account on the computer you're connecting to. If there's no password, try creating an identical account on both computers.

Organizing a gaming LAN network and multimedia

Creating a network of two computers is often necessary not only for files, but also for playing together. Many old and new games support the mode. LAN (Local Area Network)Unlike online gaming, one computer acts as the server, and the other connects directly, ensuring minimal ping (latency).

For multimedia content it is convenient to use technology DLNA Or use the built-in Windows media server features. This allows you to stream video or music from one PC to another or to a Smart TV without copying files. Simply enable "Media Streaming" in your network settings.

When setting up a gaming network, make sure your antivirus software isn't blocking connections between game processes. Firewalls often interpret multiple connections from a single IP as an attack. Add the game to the firewall exceptions for the "Private Network" profile.

• 🎮 Minimum delay: LAN ping is typically 1-3ms, which is ideal for shooters.
• 📺 Streaming: You can stream images from a powerful PC to a laptop in another room.
• 💾 No limits: The speed is limited only by the Wi-Fi channel width, not by the provider's tariff.

⚠️ Attention: Game and program interfaces may vary. If you can't find the "Network Play" or "LAN" setting, check the official documentation for the specific application, as some modern games require a connection to internet servers even for local play.

Diagnosing problems and troubleshooting errors

Even with proper setup, situations may arise where computers cannot see each other. The most common reason is firewall Or a third-party antivirus that blocks incoming connections. Try temporarily disabling the protection to test.

It's also worth checking the Function Discovery Resource Publication service. In Windows 10/11, it's often disabled by default, which hides the computer from the list of network devices. Run services.msc, find this service and set the startup type to "Automatic".

If ping fails, check the physical connection. Make sure both devices are connected to the Wi-Fi network you're setting up, not a guest network or a neighbor's network. Different VLANs or client isolation on the router can also interfere with communication.

In complex cases, resetting network settings can help. Windows Settings has a "Network Reset" feature that reinstalls drivers and returns all components to factory defaults. After rebooting, you'll have to repeat the profile setup process.

Why is my computer not visible on the network even though the internet is working?

The problem is most likely with the network profile. If Windows considers the network "Public," it hides the PC for security reasons. Also, check if Network Discovery is enabled in Advanced Sharing settings.

What is the maximum Wi-Fi transfer speed on a local network?

Speed ​​depends on the Wi-Fi standard. For 802.11n (2.4 GHz), the actual speed is around 20-40 Mbps. For 802.11ac (5 GHz), you can achieve 300-500 Mbps and higher, which is comparable to gigabit Ethernet.

Do I need the same username on both computers?

No, usernames can be different. However, if the passwords don't match or the account is a guest account, Windows may prompt you for authorization when attempting to access shared folders.