In today's digital world, the need to quickly exchange data between devices is a constant. Users often find themselves in situations where they need to transfer gigabytes of photos or work documents, but their USB flash drive is either unavailable or limited in capacity. In such situations, local area network, organized via a Wi-Fi router, becomes an ideal solution, allowing you to transfer files at high speed without unnecessary cables.
Many people mistakenly believe that creating a full-fledged local area network requires running Ethernet cables throughout the entire house. In fact, modern routers Operating systems and computers allow for data exchange between computers entirely over the air. This is not only convenient but also aesthetically pleasing, as it eliminates unnecessary visual clutter.
The setup process may seem complicated at first glance. Once you understand the basic operating principles IP addressing and shared folders, you can manage files on any device within your home or office. In this article, we'll cover every step in detail, from preparing your equipment to troubleshooting common connection errors.
Hardware and software requirements
Before you begin setup, you need to make sure your hardware meets the minimum requirements. First, both computers must be connected to the same network. Wi-Fi networksThis is a fundamental requirement for direct device discovery on the local network. If one laptop is connected to the guest Wi-Fi and the other to the main Wi-Fi, they won't "see" each other.
The operating systems on both devices must support network discovery standards. For Windows, this typically includes versions 7, 10, and 11. If you plan to connect to macOS or Linux, the process will require additional protocol configuration, such as SambaIt's also important to ensure your network adapters have up-to-date drivers installed to ensure stable operation of the wireless module.
Pay attention to your antivirus settings. Often built-in firewalls Third-party security suites may block incoming connections, deeming them suspicious. During the setup process, you may need to temporarily relax protection or add an exception for the local network to test the connection.
Basic network and access profile setup
The first step is to correctly configure the network profile in the operating system. Windows treats new connections as "Public" by default, which strictly isolates the device from other network members. To enable file sharing, you need to change this status to "Private" or "Home."
To do this, go to Settings → Network & Internet → StatusHere you'll see your connection properties. Click the "Properties" button under your Wi-Fi network name. In the window that opens, select the "Private" profile. This will make your computer visible to other devices.
☑️ Check your network profile
After changing the profile, the system will automatically apply more flexible rules for firewallYour computer is now discoverable. However, if you're in a public place, such as a café, it's strongly recommended not to use a private profile, as this could expose your data to unauthorized access.
⚠️ Warning: Changing the network profile to "Private" in public Wi-Fi zones (airports, hotels) may put your data at risk. Use this method only on trusted home or corporate networks.
Enabling sharing and network discovery
The next step is fine-tuning the sharing settings. Even with the correct network profile, sharing features can still be disabled manually or through group policies. We need to go to the Network and Sharing Center.
Open Control Panel → Network and Internet → Network and Sharing CenterIn the left menu, select "Change advanced sharing settings." Here you'll see several profiles (Private, Guest, All Networks). Make sure the following options are enabled in the active tab:
- 📡 Enable network discovery
- 📂 Enable file and printer sharing
- 🔓 Allow Windows to manage HomeGroup connections
It's also important to pay attention to the "All Networks" section. This is where you'll find a critical setting related to password protection. If you want to allow access to folders without entering a username and password (convenient for home use), select "Disable password-protected sharing."
After making changes, be sure to click "Save Changes." The system may prompt you for administrator privileges. It is recommended to restart the computer afterward so that all network services restart with the new configuration settings.
Creating and sharing a shared folder
Now that the network infrastructure is ready, you need to determine exactly what data you want to share. Simply dragging files to the desktop won't make them available over the network. You need to create a dedicated folder and configure its access rights.
Create a new folder in a convenient location, such as on a disk D:\SharedRight-click on it and select "Properties." Go to the "Sharing" tab and click the "Sharing..." button. In the window that opens, add the user "Everyone" (or All) and set the permission level for it to "Read and Write" if you want to be able to not only retrieve files, but also upload them to this computer.
| Access level | Description of rights | Recommended use |
|---|---|---|
| Reading | The user can only open and copy files. | For shared document libraries, photos |
| Reading and writing | Full control: create, modify, delete | For work folders, project sharing |
| Owner | Full control plus change access rights | For system administrator only |
Don't forget to also go to the "Security" tab in the folder properties. Here, you need to ensure that the "Everyone" group or a specific user also has the appropriate permissions in the group list. It often happens that permissions are granted in "Access," but denied in "Security," which causes an error when attempting to connect.
What should I do if the folder won't open over the network?
If you see the folder but get an access error when accessing it, check the "Security" tab. Add the "Everyone" user and grant them full permissions. Also, check if your antivirus software is blocking access to network resources.
Connecting to a remote computer by IP address
The most reliable way to connect to another computer is using its IP address. Computer names on the network may be updated with a delay, but an IP address allows you to address the device directly. First, you need to find out the target computer's address.
On the computer we are connecting to, click Win + R, enter cmd and press Enter. In the black window, enter the command ipconfigFind the line "IPv4 address". It usually looks like this: 192.168.1.XX or 192.168.0.XXWrite down these numbers.
C:\Users\User> ipconfigEthernet adapter Wi-Fi:
IPv4 address. . . . . . . . . . . : 192.168.1.45
Subnet mask. . . . . . . . . : 255.255.255.0
Default gateway . . . . . . . . : 192.168.1.1
Now switch to the second computer. Open File Explorer and enter two backslashes and the IP address in the address bar at the top, like this: \\192.168.1.45Press Enter. If all settings are correct, you will see a list of shared folders on the remote machine.
For convenience, you can right-click the network folder that appears and select "Mount as network drive." Select a drive letter (e.g., Z:), and the folder will appear in "My Computer" as a regular hard drive partition, which is extremely convenient for regular use.
Remote desktop control via Wi-Fi
Sometimes a user needs more than just transferring a file; they need full control of another computer's screen. Windows has a built-in feature called Remote Desktop Protocol (RDP) for this purpose. This powerful tool broadcasts images and transmits input commands over the network.
It's important to note that the host feature is only available in Windows Pro and higher. In the Home version, you can only connect to others, not to yourself. To activate, go to Settings → System → Remote Desktop and switch the slider to the "On" position.
⚠️ Important: When using Remote Desktop, ensure the target computer has a strong account password. Blank passwords are often blocked by Windows security policies when attempting an RDP connection.
To launch the client on the host computer, use the Remote Desktop Connection application. Enter the IP address of the remote machine and user credentials. The connection is established through the port 3389, so make sure it is not blocked.
Troubleshooting and Frequently Asked Questions
Despite their apparent simplicity, wireless networks are susceptible to interference and software conflicts. If computers can't see each other, the first thing you should try is running a network reset command. Open the Command Prompt as administrator and enter netsh winsock reset, then reboot.
A common problem is different network types. If one PC considers the network "Public" and the other "Private," they may ignore discovery requests. Also, check that the workgroup names (Workgroup) on both computers matched (by default this is WORKGROUP).
Why is file transfer so slow?
Speed may drop due to interference in the Wi-Fi channel, using the 802.11n standard instead of ac/ax, or low signal strength. Try moving closer to the router or switching to the 5 GHz band.
It asks for a password, although I didn’t set one?
Windows requires authorization. Enter the username and password for the account you're connecting to. If you don't have a password, you'll need to create one or disable password protection in the sharing settings.
Is it possible to connect to a computer outside the home network?
Yes, but this requires setting up a static IP address, port forwarding on the router, or using a VPN. A direct connection from the internet without these measures is impossible and unsafe.
How do I turn off sharing if I no longer need it?
Return to the Network and Sharing Center, select "Change advanced sharing settings," and disable network discovery and file sharing. Also, remove permissions from the properties of specific folders.