Creating a local connection between two computers without a router is a common task when quickly transferring gigabytes of data or collaborating. Many users mistakenly believe that this requires a router or patch cord, but modern technology allows for a direct wireless connection. Wi-Fi Direct or the "Mobile hotspot" function.
In this article, we'll cover the detailed steps for Windows 10 and 11, as these are the operating systems installed on most devices. You'll learn how to turn one laptop into a hotspot and connect a second one to it, creating a fully functional network. LAN- a network for file sharing, online gaming or remote control.
The setup process doesn't require extensive network administration knowledge, but it does require careful consideration when entering security parameters. It's important to understand that with a direct connection, one computer acts as a server, distributing IP addresses, while the other acts as a client.
Select a connection method: Mobile hotspot or Ad-hoc
Before starting the technical setup, you need to decide on a communication method. In modern versions of Windows, the simplest and most stable method is to use the built-in function Mobile hotspotThis approach allows you to broadcast an Internet connection or create a local network even without access to the global network.
An alternative option is to create a computer-to-computer (Ad-hoc) network, which was popular in Windows 7 but is hidden deeper in the settings or requires the use of the command line in newer systems. For most users, a hotspot is the optimal choice, as it provides better compatibility and data transfer speeds.
⚠️ Note: Using the Mobile Hotspot method will drain your main laptop's battery significantly faster. It is recommended to connect the device to a power source before using it for extended periods.
It's also worth considering hardware limitations. Older Wi-Fi adapters may not support simultaneous operation as an access point and client. Check your adapter's specifications. Wireless Adapter on the manufacturer's website if you encounter startup errors.
Setting up your first laptop: creating a hotspot
Let's start with the device that will be broadcasting the signal. In Windows 10 and 11, this process is standardized and takes only a few minutes. Open the menu Start and go to Parameters (gear icon), then select the section Network and Internet.
Find the item on the left side of the menu Mobile hotspotHere you need to select a connection source (if you need to share the internet) or simply activate the local network mode. Click the button Changeto set the network name (SSID) and password.
- 🔹 Create a complex password of at least 8 characters to prevent unauthorized access.
- 🔹 Select frequency range:
2.4 GHzprovides greater range, and5 GHz- higher speed. - 🔹 Remember or write down the network name, as you will need it to connect the second device.
After setting the parameters, move the switch Allow use of my internet connection... in position OnThe system will automatically assign a new IP address to the network adapter and start DHCP services.
Connecting a second laptop to the created network
Now let's move on to the second device. Make sure Wi-Fi is enabled on it. Click the network icon in the system tray (near the clock) or open Settings → Network and Internet → Wi-Fi.
In the list of available networks, find the name you set on the first laptop. Click on it and select ConnectThe system will prompt you to enter a security key. Enter the password you set earlier.
When you first connect, Windows will ask you about your network type. Selecting a profile is critical for setting up local data exchange. PrivateIf you select "Public," the system will block other devices on the network from discovering your computer.
☑️ Connection check
Setting up shared access to files and folders
After successfully connecting the two laptops, you need to configure access rights, otherwise the computers will not "see" each other in the network environment. Open Control Panel and go to Network and Sharing Center.
Select on the left Change advanced sharing options. In the profile Private (current) the following options must be activated:
- 📂 Turn on network discovery.
- 📂 Enable file and printer sharing.
- 📂 Allow management of HomeGroup connections.
At the bottom of the window, in the section All networksIt's recommended to enable sharing and disable password protection if you're in a secure home environment. This will make it easier to access folders without constantly entering your credentials.
⚠️ Note: Disabling password protection makes your folders accessible to any device within Wi-Fi range. Use this option only if you are confident in the security of your wireless connection.
To grant access to a specific folder, right-click on it, select Properties → Access → Advanced settings. Check the box. Open public access and in the rights for the group All Set full access or read/write.
Comparison of connection methods and their characteristics
To help you choose the optimal connection method between two laptops, we've compiled a comparison table of the main methods. It will help you understand which option is best suited to your specific needs.
| Parameter | Mobile hotspot | Ad-hoc (Computer-to-computer) | Direct Wi-Fi connection |
|---|---|---|---|
| Difficulty of setup | Low (built-in interface) | High (via cmd or hidden menus) | Average |
| Transfer speed | High (up to 300+ Mbps) | Average (depending on adapter) | Maximum (Wi-Fi Direct) |
| Compatibility | Windows 10/11, Android, iOS | All versions of Windows | Requires driver support |
| Stability | High | Average (frequent breaks) | High |
As can be seen from the table, Mobile hotspot is the most versatile solution for modern systems. It combines ease of use with high performance, making it the preferred choice for most scenarios.
Solutions to common problems and errors
Despite automated processes, users may encounter difficulties. It's common for a laptop to see the network but not connect, or to see a message saying "Unable to connect to this network." First, check your Wi-Fi adapter drivers.
Go to device Manager, find your wireless adapter and make sure it doesn't have any yellow exclamation marks. Try updating the driver or, conversely, rolling it back to a previous version if the problem occurred after an update.
Another common cause is an IP address conflict or incorrect DNS settings. Try resetting your network settings using the following command in the Command Prompt with administrator privileges:
netsh winsock resetnetsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns
After running the commands, be sure to restart both laptops. This clears the network protocol cache and often resolves issues with devices not being visible on the local network.
What should I do if the second laptop doesn't see the first one on the "Network"?
Make sure the network profile on both devices is set to "Private." Check the "Function Discovery Resource Publishing" service—it should be running. Your antivirus may also be blocking the connection—try temporarily disabling your firewall.
Alternative methods of data transfer without a router
If setting up a local network seems too complicated or time-consuming, there are alternative data transfer methods that work over an existing Wi-Fi connection (if both laptops are connected to the same router) or by creating a temporary network.
One of the fastest ways is to use the built-in sharing features. Windows 10 and 11 have this feature. Exchange nearby (Nearby Sharing) It uses Bluetooth for discovery and Wi-Fi for file transfer.
To activate, go to Settings → System → General Features and turn it on Exchange nearby. Select the "Everyone around" or "Only my devices" mode. Now you can simply right-click on the file, select Share and see the second laptop in the list.
- 🚀 Instant transfer without IP address configuration.
- 🚀 Works even if the devices are on different subnets (if there is a common gateway).
- 🚀 Support transfer between Windows and Android devices.
You can also use third-party software, for example, FileZilla (to create an FTP server) or Resilio Sync for real-time folder synchronization. These tools are useful for regular work, but require software installation.
Is it possible to connect laptops via Wi-Fi if one of them is running macOS?
Yes, it's possible. A Mac can create a network via Internet Sharing, and Windows will connect to it like a regular Wi-Fi hotspot. However, file sharing will require setting up the SMB protocol or using cross-platform software like Syncthing.
What is the maximum Wi-Fi transfer speed between laptops?
Speed depends on the Wi-Fi standard (n, ac, ax) and band. At 5 GHz with 802.11ac support, actual speeds can reach 300-400 Mbps, comparable to a fast wired connection.
Is it safe to transfer banking data over the created hotspot network?
If you set a strong WPA2/WPA3 password and the "Private" network profile, your connection is reasonably secure from unauthorized access. However, for critical operations, it's always preferable to use a wired connection or mobile data.