Setting up a local network between two computers without using wires is a challenge faced by many users who want to quickly transfer gigabytes of data or access shared resources. Wi-Fi router It allows you to create virtual bridges that perform just as well as physical cables if the equipment is configured correctly. Unlike transferring data via flash drives or cloud storage, a direct connection ensures stable speeds and independence from external servers.
The setup process requires attention to detail, as operating systems often block external connections by default for security reasons. You'll need to ensure both devices are on the same subnet and can see each other. We'll walk you through every step, from checking drivers to granting access to specific folders, so you can seamlessly exchange information.
There are several scenarios for using this combination: from simply streaming video to a TV or a second monitor to collaborating on projects in the office. Understanding the principles of operation TCP/IP protocols This will help you not only set up your network now, but also troubleshoot potential issues in the future. Let's move on to practical implementation.
Checking wireless network hardware and drivers
The first step is to ensure that the hardware is ready for use. Both computers must be equipped with working Wi-Fi adapters that support standards no lower than 802.11n, and ideally - 802.11ac or ax For high speed. Older cards can become a bottleneck, limiting data transfer speeds to a few megabits per second, which is critical when working with large files.
You need to make sure both PCs have the latest drivers installed. Go to Device Manager and check the network adapter status. If you see a yellow exclamation point or the device is marked as "Unknown," the driver is missing or not working properly. Download software only from official motherboard or laptop manufacturer websites, avoiding dubious driver download sites.
- 📡 Make sure both PCs are connected to the same Wi-Fi network (same SSID).
- 🔌 Check if the wireless indicator on your laptop or adapter is lit.
- ⚙️ Make sure that the "Turn off this device to save power" box is not checked in the adapter properties.
⚠️ Note: If one computer is connected via cable and the other via Wi-Fi, they can still see each other, but only if the router does not separate them into different VLANs or guest networks.
A common mistake is ignoring the frequency range. If one laptop operates at 2.4 GHz and the other only at 5 GHz, they will still connect through the router, but the speed may be unstable. For maximum performance, it's best to have both devices operating in the same frequency range, preferably 5 GHz, where there is less interference from neighboring networks and household appliances.
Setting up a network profile and discovery
By default, the Windows operating system considers new networks "Public," which implies strict security rules and hides the computer from others. To connect two PCs, you need to change the network profile to "Private." This will make the computer visible to other devices on the local network.
You can do this through the network settings. Click the Wi-Fi icon in the system tray, select your network properties, and switch profiles. After this, the system will allow discovery of devices and printers. Without this step, computers will ignore connection requests from each other even with the correct IP address.
Next, you need to enable discovery features. Go to "Control Panel" → "Network and Sharing Center" (or "Network and Internet" → "Advanced Sharing Settings"). Here, you need to enable network discovery and file sharing. This is the foundation upon which all local communication is built.
- 🔍 Enable the "Turn on network discovery" option.
- 📂 Enable "Turn on file and printer sharing."
- 🔐 Disable password protection only if you completely trust everyone on your Wi-Fi network (not recommended for public places).
It's important to understand the difference between discovery and access. A computer can "see" another computer's name in the network list, but not have permission to open its files. Therefore, after enabling discovery, you should proceed to configure access rights to specific resources; otherwise, you'll encounter a "Deny" error when attempting to log in.
Creating a shared folder and setting access rights
Simply enabling sharing isn't enough—you need to specify which folders are accessible to other users. Select the folder you want to share, right-click, and go to Properties. The "Sharing" tab lets you launch the Shared Folder Wizard or manually add users.
For manual setup, click "Advanced Setup" and check "Share with others." Then click "Permissions" and ensure that the "Everyone" group or a specific user has read and write permissions for the files. If you only plan to transfer files from one PC to another, read permissions are sufficient, but for full functionality, write permissions are required.
Quick access path:
Control Panel\All Control Panel Items\Network and Sharing Center\Advanced sharing settings
There's a caveat with the system's "Public Documents" folder. Files placed there are automatically accessible to all users on the local network, if this is allowed in the settings. This is a quick method, but less secure, as anyone connected to your Wi-Fi network can access it.
How to hide a folder from being displayed on the network?
You can make a folder hidden by adding a dollar sign ($) to the end of the folder name when creating a share, such as "Data$." It won't be visible over the network, but will be accessible via a direct path.
Don't forget about the file system. If the disk is formatted in NTFSFile system-level access rights (see the "Security" tab) take precedence over network permissions. Ensure the "Everyone" user with the required access level is added to the security group list, otherwise network permissions may be ignored.
Problems with passwords and accounts
One of the most common problems when connecting two PCs is a password prompt. Windows requires authentication to prevent unauthorized access. If both computers have the same usernames and passwords, login may occur automatically. Otherwise, the system will prompt for credentials.
You need to enter the login and password for the account on that computer, to which You're connecting to the computer, not the one you're working from. This often causes confusion. If the target PC doesn't have a password (the password is blank), the default Windows security policy may block the login. In this case, either set a password or change the policy in the Local Group Policy Editor.
☑️ Authorization checklist
There is a way to disable password protection, but it compromises security. In "Advanced Sharing Settings," at the very bottom, there's a checkbox labeled "Turn off password-protected sharing." Use this only on home networks where there are no unauthorized devices. It's risky in an office environment or apartment building.
⚠️ Note: If you changed your Microsoft account password, your old saved credentials in Windows may no longer work. Clear them in Credential Manager to enter your new password.
Sometimes it helps to create a dedicated local user for network access with a simple password. This simplifies connection from mobile devices or TVs that may not correctly handle complex passwords or two-factor authentication for a Microsoft account.
Direct connection via IP addresses
If automatic discovery doesn't work, the most reliable way to connect two PCs is to use IP addresses. Each device on the network has a unique address, such as 192.168.1.5. Knowing this address allows you to access the computer's resources directly, bypassing discovery services, which are often problematic in Windows.
To find out the IP address, open the command prompt (cmd) and enter the command ipconfigFind the line "IPv4 Address." Write this address down. On the second computer, click Win + R, enter \\192.168.1.X (where X is the address of the first PC) and press Enter. If the permissions are correct, a window with shared folders will open.
| Parameter | Description | Example of meaning |
|---|---|---|
| IPv4 Address | A unique address on a local network | 192.168.0.15 |
| Subnet Mask | Subnet mask (must match) | 255.255.255.0 |
| Default Gateway | Router address | 192.168.0.1 |
| DNS | Name server address (usually a router) | 192.168.0.1 |
For ease of use, you can map a network folder to a drive letter. In File Explorer, click "Map Network Drive," select the drive letter, and enter the path to the folder in the following format: \\IP Address\FolderNameNow you can access files on your second PC just like you would a regular local drive in My Computer.
Solving common connection errors
Even with proper configuration, errors can still occur. Often, the culprit is an antivirus or firewall blocking incoming connections. If you can ping but the folders won't open, try temporarily disabling your third-party antivirus or checking your Windows firewall rules.
Another common issue is the SMB 1.0 service. In newer versions of Windows, it's disabled by default due to vulnerabilities, but older devices (such as NAS or older printers) may require it. For modern PCs, it's better to use SMB 2 or 3, but if all else fails, ensure SMB support is enabled in Windows Features.
- ❌ Error 0x80070035 (Network path not found) - check the computer name or IP, enable the discovery service.
- 🚫 Access error - check the permissions in the Security tab and your account password.
- ⏳ Folders take a long time to open – this is often due to the system trying to find media devices; disable media content search in the folder properties.
⚠️ Note: Windows settings interfaces and menu item names may differ depending on the update version (Home, Pro, Enterprise). If you can't find the option, search for keywords in the system settings.
If the transfer speed is extremely slow, check if a Windows update or torrent download is running in the background on one of your PCs. Also, make sure you're not connected via your router's guest mode, which often isolates clients from each other (AP Isolation). This feature is designed for hotels and cafes, but at home, it interferes with PC connectivity.
Frequently Asked Questions (FAQ)
Is it possible to connect two PCs via Wi-Fi without a router?
Yes, this is possible using the Ad-Hoc network feature in Windows. However, in modern versions (Windows 10/11), creating such a network through the standard interface is hidden and requires the use of the command line. It's simpler and more stable to use a router, even if the internet is down—it will act as a switch.
Why is my computer visible on the network, but it says "No access"?
This means network discovery is working, but your account doesn't have read permissions for the folder. Check the "Security" tab in the folder's properties on the target PC and add "Everyone" or a specific user with read permissions. Also, check if password protection is enabled.
What is the maximum speed when connected via Wi-Fi?
Speed depends on the Wi-Fi standard. For 802.11n, real-world speeds are around 30-50 Mbps, for 802.11ac (Wi-Fi 5), up to 400-500 Mbps under ideal conditions, and Wi-Fi 6 can deliver even more. However, Wi-Fi always has overhead, so a Gigabit Ethernet cable (1 Gbps) will be more stable and faster for larger data volumes.
Is it safe to keep sharing enabled all the time?
If you're on a home network with a strong Wi-Fi password (WPA2/WPA3), the risks are minimal. However, in public places or if you frequently have guests, it's best to disable network discovery or use a guest network for visitors to isolate them from your main PCs.