Creating a local area network (LAN) via a wireless connection is one of the most effective ways to integrate computers, laptops, and other devices into a single ecosystem without the need for additional cables. In today's environment, when Wi-Fi router Almost every home has a wireless connection, and setting up such a connection is becoming a basic skill for comfortable work with multimedia and documents. You'll no longer have to run from one computer to another with flash drives or transfer files via cloud storage if the internet is slow.
The main advantage of this configuration is the high data transfer rate within the perimeter of an apartment or office, which is limited only by the capabilities of your equipment and communication standard. Gigahertz ranges They allow you to stream high-definition video or back up disk partitions almost instantly. However, for the system to operate stably, it's necessary to properly configure security and detection settings, which we'll discuss in detail below.
The setup process may seem complicated at first glance, as operating systems often hide these features for security reasons. We'll cover all the details, from basic router settings to fine-tuning access rights in Windows. The key is to have all devices on the same subnet to ensure they are visible to each other. Once you've completed all the steps, you'll have a fully-fledged data storage server, accessible from any device.
Preparing the equipment and checking the router
The first step is to check the basic functionality of your wireless routerMake sure all devices you plan to network are connected to the same access point. This seems obvious, but a common mistake is connecting one computer to the guest network and another to the main network, preventing them from seeing each other. Check the indicators on the router: a lit WLAN light usually indicates wireless activity.
For stable operation, it is recommended to use the 5 GHz band if your devices support the standards. 802.11ac or newer. This will ensure minimal latency and high throughput when transferring large amounts of data. If you're using the older 2.4 GHz band, your speed may be lower and you may experience more interference from neighboring networks. In any case, keeping devices physically close to the router significantly improves signal quality.
⚠️ Note: Some providers ship routers with client isolation already configured for security. If computers can't see each other, check your router settings or contact technical support, as this feature blocks local data exchange.
It's also important to ensure that the network adapter is enabled on all computers and that the latest drivers are installed. Go to Device Manager and check for exclamation marks on the network cards. Sometimes, simply rebooting the router can clear errors on the DHCP server that assigns IP addresses and resolve the connection issue.
Configuring network settings in Windows
By default, the Windows operating system may block detection of other devices, considering the current one to be connected. To change this, you need to go to Settings → Network & Internet → StatusIn the "Properties" section, change the network profile from "Public" to "Private." This will make your computer visible to other devices and open the necessary ports for file sharing.
Next, you need to configure the sharing settings. Open Control Panel → Network and Internet → Network and Sharing CenterOn the left, select "Change advanced sharing settings." Here you need to enable network discovery and file and printer sharing. For a home network, you can also enable password-protected sharing if you want to control who has access to your folders.
☑️ Check Windows settings
Be sure to check the workgroup name on all computers. By default, Windows uses the name WORKGROUP, and it should be the same on all machines. You can change it through System → Advanced system settings → Computer nameIf the workgroup names are different, computers may not appear in Network Neighborhood despite the correct security settings.
Creating a shared folder and setting access rights
Once the network infrastructure is configured, you need to create a resource that other network members will use. Select the folder you want to share, right-click it, and select "Properties." Go to the "Sharing" tab and click "Advanced." Check "Share this folder" and specify a name for the resource that will be visible to other users.
Setting up access rights (permissions) is an important step. Click the "Permissions" button and select a user group, such as "Everyone," or a specific user on your network. You can configure permissions flexibly: allow only reading of files, to prevent accidental deletion of documents, or grant full write and modification rights. For a media server, read permissions are usually sufficient.
| Permission type | Description of action | Recommended use |
|---|---|---|
| Full access | Allows you to read, modify, delete files and change permissions | Administrator's personal folders |
| Change | Allows reading, writing, and deleting files | Collaborative folders |
| Reading | View and copy files only | Media libraries and archives |
It's also worth paying attention to the "Security" tab in the folder properties. The appropriate permissions should be set there for the "Users" or "Everyone" group. If access is denied at the NTFS file system level, the sharing settings won't help. Make sure the permission levels in the "Access" and "Security" tabs don't conflict with each other.
Connecting to the network from mobile devices and macOS
Users of Apple devices and mobile gadgets can also easily integrate into the network you've created. On macOS, simply open Finder and select "Network" from the sidebar. If network discovery is configured correctly, you'll see the Windows computer. Connecting may require entering the login and password of the Windows user account where the shared folder is located.
On Android and iOS, for convenient work with local files, it is best to use specialized file managers, for example, Owlfiles, FE File Explorer or VLC For media. In these applications, you need to select to add a new connection using the SMB (Server Message Block) protocol. The application will automatically scan the network and suggest available computers.
⚠️ Note: SMB version 1.0 is considered obsolete and insecure, so modern versions of Windows and macOS may block it by default. It is recommended to use SMB v2 or v3, which are enabled in Windows Features.
When entering login credentials on mobile devices, you'll often be asked to enter not only your username, but also your domain or computer name. If simple login fails, try entering your credentials in the following format: COMPUTER_NAME\UserThis helps the system understand which account to contact for authorization.
IP Address Access and Troubleshooting
Sometimes automatic discovery (Network Discovery) doesn't work correctly, and computers don't appear in the list of available devices. In this case, the most reliable connection method is to directly enter the IP address. You can find the host computer's IP address by opening the command prompt (cmd) and entering the command ipconfigFind the IPv4 address line, it usually looks like 192.168.1.X or 192.168.0.X.
C:\Users\User> ipconfigEthernet adapter Ethernet:
IPv4 address.........: 192.168.1.45
Subnet mask.........: 255.255.255.0
Default gateway: 192.168.1.1
To connect to a shared folder by IP address, click Win + R and enter the path in the format \\192.168.1.45 (insert your IP address). If everything is configured correctly, a window will open with a list of available folders. This method almost always works, even if Windows Discovery Services fails. For convenience, you can create a desktop shortcut with this path.
What should I do if Windows asks for a password that doesn't work?
Often, the problem lies in a blank account password. Windows, by default, disallows network access for accounts without a password. Solution: either set a password for your user or (less securely) disable the password requirement in Advanced Sharing Settings.
If you experience connection errors, check your firewall. Antivirus software and Windows Defender can block incoming connections. Make sure private network discovery and file sharing are allowed in your firewall rules. Sometimes temporarily disabling your antivirus software to test the issue can help, but remember to re-enable it.
Setting up a media server (DLNA)
If your goal is not just to share files, but to watch movies on TV or listen to music on speakers, you will need technology DLNAWindows can stream media content without installing additional software. To do this, enable streaming in "Streaming Media Settings" and select the devices allowed to play the content.
Once this feature is enabled, your TV, set-top box, or game console connected to the same Wi-Fi network will see your computer as a media library source. You'll be able to play movies directly from the TV menu using the remote, without having to copy files. This turns a regular PC into a powerful multimedia center.
However, for more advanced control, including downloading subtitles on the fly, organizing posters and descriptions, it is better to use specialized software, for example, Plex or JellyfinThese programs create a beautiful interface and stream video in formats accessible to any client, taking care of the heavy lifting of stream transcoding.
Frequently Asked Questions (FAQ)
Will the local network work if there is no internet access?
Yes, the local network works regardless of internet access. The main thing is that the router is turned on and distributing Wi-Fi, and the devices are connected to it. File transfers between computers will continue at full speed, even if the ISP's cable is disconnected.
What is the maximum speed that can be achieved via Wi-Fi on a local network?
Speed depends on the Wi-Fi standard. For 802.11n (2.4 GHz), actual speeds will be around 20-40 Mbps. The 802.11ac standard (5 GHz) allows for speeds of 300-500 Mbps and higher, comparable to a wired Fast Ethernet connection.
Is it safe to share folders?
If you're on a home network with a strong Wi-Fi password (WPA2/WPA3), you're safe. The only danger is on public networks. Always use strong passwords for Windows accounts, and don't grant "Full Control" permissions to the "Everyone" group unless necessary.
Why can't computers see each other after a Windows update?
Major Windows updates often reset the network profile to "Public" for security reasons. Just check your network settings again and make sure the "Private Network" profile is selected and network discovery is enabled.