Organizing local data exchange indoors without using wires is a challenge faced by users who want to quickly transfer files or launch a network game. local network A Wi-Fi router allows you to connect desktop PCs, laptops, and even mobile devices into a single ecosystem. This eliminates the need to lug around flash drives or use cloud storage when transferring gigabytes of data.
Modern operating systems, in particular Windows 10 And Windows 11, have built-in tools to implement this function, but standard security settings often block visibility of devices. To computers To see each other, you need to correctly configure your network profile and sharing settings. In this article, we'll cover all configuration steps, from checking your hardware to troubleshooting common connection errors.
Before you start any manipulations, make sure that all the devices you plan to combine are connected to the same wireless routerIf one computer is connected via a cable and the other via Wi-Fi, they will still be on the same local network unless the router separates them into different VLANs. It's also important to understand that data transfer speed will be limited by the wireless channel's bandwidth and frequency range.
Equipment check and basic requirements
The foundation of a successful connection is proper hardware. Make sure your wireless adapter It works correctly and the drivers are up-to-date. Older network cards that only support the 802.11g or 802.11n standard can become a bottleneck, limiting file transfer speeds to 2-5 MB/s, which is critically low for working with large amounts of data.
The frequency range your network operates in also matters. Modern routers often broadcast two SSIDs: one at 2.4 GHz and one at 5 GHz. To create a stable and fast local network It is highly recommended that computers be connected to the 5 GHz band, as it provides higher throughput and is less susceptible to interference from neighboring devices and microwave ovens.
⚠️ Important: If your router uses the "Guest Network" feature, devices connected to it are isolated from the main local network by default. To establish a connection between PCs, ensure that all devices are connected to the main SSID, not the guest SSID.
Check the physical placement of your devices. Walls, mirrors, and appliances can significantly weaken the signal, leading to connection drops during file transfers. If your computers are in different rooms, it might be worth using Wi-Fi repeater or set up a Mesh system to improve coverage.
Setting the network type in Windows
The first software step is to change your network profile. By default, Windows assigns new connections to the "Public Network" profile, which hides your computer from detection by other devices for security reasons. We need to switch it to "Private Network" to allow discovery.
To do this, go to the menu Settings → Network & Internet → StatusIn the "Properties" section of your Wi-Fi connection, change the network profile from "Public" to "Private." After doing this, the operating system will allow incoming connections and make the device visible to other users. local group.
If you're using older versions of the operating system or prefer the classic interface, you can use the Control Panel. Follow the path Control Panel → Network and Internet → Network and Sharing CenterYou can also change the current connection settings here. It's important to perform this procedure on all computers you want to see on the network.
After changing the profile, the system may prompt you to allow network access. Confirm this action to open the necessary ports for discovery protocols. Without this step, even if sharing is configured correctly, computers will not "see" each other in the list of network devices.
Enabling file and folder sharing
After setting up your network profile, you need to activate the sharing features. Open Network and Sharing Center and select "Change advanced sharing settings." This is where you'll find the key switches that control your PC's visibility.
In the "Private (current profile)" section, you need to enable the following options:
- 📡 Enable network discovery (and automatic configuration of connected devices).
- 📂 Enable file and printer sharing.
- 🔐 Allow Windows to manage HomeGroup connections (if applicable).
It's also worth paying attention to the "All Networks" section. It's recommended to enable "Password-protected sharing" here if you're at home and want to ensure that only authorized users have access to files. If you want to simplify password-free access as much as possible (for example, on an isolated home network without sensitive data), you can disable this feature, but this reduces security.
⚠️ Note: Disabling password protection makes folders accessible to any device connected to your Wi-Fi. Use this method only on trusted home networks where there are no strangers with laptops.
After making changes, be sure to click the "Save Changes" button. The system will apply the new firewall rules. If you have a third-party antivirus (e.g., Kaspersky or ESET) blocks the connection, you may need to further configure the rules in the antivirus itself, as it can ignore Windows system settings.
☑️ Sharing setup checklist
Advanced configuration via registry and services
Sometimes the default settings aren't enough, and computers stubbornly fail to communicate with each other. In such cases, intervention in system services is required. The main service responsible for publishing resources on the network is called Function Discovery Resource PublicationBy default, it can be disabled or operated in manual mode.
To correct the situation, click Win + R, enter services.msc and press Enter. Find the "Function Discovery Resource Publishing" service in the list. Double-click it, set the startup type to "Automatic," and click "Start." You should perform a similar procedure for the "Discovery Provider Host" service.
Another effective method is to edit the registry to force SMB 1.0 (although this is less secure) or adjust NetBIOS settings. However, a more secure and modern solution is to configure a setting through Group Policy or the registry to allow insecure guest logons if you work in a mixed environment with different versions of Windows.
reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" /v AllowInsecureGuestAuth /t REG_DWORD /d 1 /fThis command, executed in the command prompt with administrator rights (cmd Run as administrator (run as administrator) allows passwordless login for guest accounts, which is often required when connecting to network-attached storage (NAS) devices or older PCs. A reboot is required after running the command.
What to do if the service does not start?
If the Function Discovery Resource Publishing service fails to start and returns an error, check for a dependency on the UPnP service. It should also be running. In rare cases, reinstalling the TCP/IP protocol by resetting the network in Windows settings resolves the issue.
Creating and sharing a folder
Now that the network infrastructure is set up, you need to select the content you want to share. Create a new folder in a convenient location (for example, on the D: drive) or use the default "Shared Documents" folder. Right-click the folder and select "Properties."
Go to the "Access" tab and click "Advanced." Check "Share this folder." Below, click "Permissions." Here you can fine-tune the permissions:
- ✅ Full Control: Allows other users to modify, delete, and create files.
- 📝 Modify: Similar to Full Access, but with some restrictions on changing permissions.
- 👁️ Read: Users can only open and copy files, but cannot modify them.
It's important to remember to check the "Security" tab in the folder properties. Access rights in the NTFS file system take precedence over share permissions. If the "Everyone" user or group doesn't have write permissions in the "Security" tab, then even with full access, files won't be able to be written to the share. Add the "Everyone" group and grant it the necessary permissions.
| Access type | Access tab | Security tab | Result |
|---|---|---|---|
| Read only | Reading | Reading | Files are visible and copying is allowed. |
| Full control | Full access | Full access | Full file management |
| Blocking | Full access | No access | Access denied (NTFS priority) |
| Configuration error | No access | Full access | Access Denied (Share Priority) |
Once configured, the folder will be accessible over the network. The path to it will look like this: \\COMPUTER_NAME\FOLDER_NAME. You can see the computer name in the system properties (This PC → Properties).
Mapping a network drive and troubleshooting
For ease of continuous use, it's best to map the network folder as a separate drive. Open "This PC," right-click on the empty space, and select "Map network drive." Select the drive letter (e.g., Z:) and enter the path to the folder in the following format: \\IP address\Folder or \\PCName\Folder.
Using an IP address (eg. 192.168.1.55) is often more reliable than using the computer name, since DNS resolvers may not work correctly on home networks. You can find your IP address with the command ipconfig in the command line.
⚠️ Please note: Your router's DHCP server may change your computer's IP address over time. To prevent network drive access from becoming unavailable, we recommend assigning the IP address to the MAC address of the network adapter in your router settings (static DHCP lease).
If you receive the "Unable to access..." error when connecting, try entering the IP address directly into the address bar in File Explorer. Also, check to see if Windows Firewall is blocking incoming connections for the "Private" network type. Sometimes, temporarily disabling your antivirus software for diagnostic purposes helps.
Frequently Asked Questions (FAQ)
Why can't computers see each other even though they share the same Wi-Fi?
Most likely, the devices have different network profiles (one "Public," the other "Private"), or network discovery is disabled. Also, check if your antivirus software or router settings (AP Isolation) are blocking the connection.
How to transfer files between Windows and macOS/Android?
To do this, you will need to set up an SMB server on Windows (as described above) and connect to it from another device via "Connect to Server" (macOS) or file manager (Android/iOS), entering the IP address of the Windows PC.
Is it safe to keep sharing enabled all the time?
If you're on a home network with a strong Wi-Fi password and complex Windows account passwords, the risk is minimal. In public places (cafes, hotels), enabling public access is strictly prohibited.
What is the maximum transfer speed for Wi-Fi?
In the 2.4 GHz band, actual speeds rarely exceed 3-4 MB/s. In the 5 GHz band (AC/AX standard), speeds of 20-50 MB/s and higher can be achieved, depending on the distance to the router and the quality of the adapters.