Local Area Network via Wi-Fi Router: A Complete Guide to Creating and Setting Up

Creating a local network via Wi-Fi router — a task faced by both novice users and experienced home network administrators. A local area network allows you to share files between computers, use a shared printer, play online games, or even set up a media server to stream content to Smart TVBut how do you set up such a connection correctly so that all devices can see each other and the data transfer speed isn't affected by interference?

In this article, we will cover all the steps, from choosing a connection scheme to fine-tuning the parameters. IP, DHCP And WorkgroupYou will learn how to avoid common mistakes (for example, conflict IP addresses (or incorrect firewall settings), as well as how to optimize your network for stable operation. We'll pay special attention to security: we'll set up password protection and restrict access for unauthorized devices.

The material is relevant for routers of any brand - TP-Link, ASUS, Keenetic, MikroTik, Zyxel and others. The instructions are based on current firmware versions, but the setup principles are universal. If your router is older than 5 years, some menu items may differ. In this case, please consult the model's documentation.

1. Choosing a connection scheme: what kind of local network to create?

Before you start setting up, decide which network exactly You want to organize it. This determines the choice of router parameters and device configuration. Let's consider three main scenarios:

• 🖥️ Network for sharing files between computers — suitable for home or small office use. All devices are connected to a single router and can access shared folders.
• 🖨️ Network with a shared printer or MFP — allows you to print from any device without a direct connection to the printer.
• 🎮 Network for online gaming or media server - requires minimal delays (ping) and high data transfer speed.

For most home use, the first diagram is sufficient. If you need a network for gaming, pay attention to the settings. QoS (Quality of Service) in the router - they will help prioritize traffic. For a media server (for example, Plex or Kodi) it is important to configure static IP addresses for devices to avoid access problems.

⚠️ Attention: If you plan to use devices with different operating systems in your network (for example, Windows 11 And macOS Ventura), make sure that the protocol SMB configured correctly. In new versions Windows support may be disabled by default SMB1, which will lead to problems with access from the outside Mac or Linux.

2. Preparing the router: basic settings before creating a network

For a stable local network, your router must be configured correctly. Start by checking the following settings:

1. Update the firmware Upgrade your router to the latest version. Outdated software may contain bugs that affect network performance. You can check the version in the web interface under System Tools → Firmware Update.
2. Reset settings to the factory (Reset) if the router has already been used. This will avoid conflicts with previous configurations.
3. Configure basic Wi-Fi settings:
   • 🔒 Network name (SSID) - use Latin characters without spaces.
   • 🔐 Security type - only WPA2-PSK or WPA3-PSK (Not WEP!).
   • 📶 Wi-Fi channel - choose the least loaded one (use air analysis in mobile applications like WiFi Analyzer).

Pay special attention to the settings DHCPThis protocol automatically assigns IP addresses devices on the network. Recommended parameters:

• 🔢 Range IP: 192.168.1.100 – 192.168.1.199 (to leave free addresses for static assignments).
• 🕒 Rental time IP: 24 hours (the default is usually 12 hours).
• 🔄 Enable linking MAC-IP, if you want to fix addresses for specific devices.

⚠️ Attention: If your network contains devices with manual configuration IP (for example, a printer or NAS), make sure their addresses are not in the range DHCPFor example, if DHCP distributes addresses with 192.168.1.100, then for static devices use 192.168.1.2–192.168.1.99.

Update firmware to the latest version|

Reset to factory settings (if the router is used)|

Set up Wi-Fi with WPA2/WPA3 security|

Allocate IP range for DHCP (e.g. 192.168.1.100–199)|

Disable the guest network (if not needed)

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3. Setting up devices: how to connect computers and gadgets to the network

After setting up the router, you need to configure the devices themselves—computers, laptops, smartphones, and other gadgets. The basic steps are:

For Windows 10/11:

1. Open Control Panel → Network and Internet → Network and Sharing Center.
2. Select Change advanced sharing options and turn on:
   • 🔄 Network discovery (for all profiles).
   • 📁 File and Printer Sharing.
   • 🔒 128-bit encryption (disable 40/56-bit if present).

Make sure all devices are on the same working group (Workgroup). By default in Windows This WORKGROUP (without quotes). You can check in System Properties → Computer Name.

For macOS:

On Mac The setup is simpler, but there are some nuances with the protocol SMB:

1. Open System Preferences → Sharing.
2. Turn on File sharing and add folders to the sharing list.
3. In the section Parameters enable support SMB (check the box next to your user).

For Android And iOS Additional settings are usually not required—connecting to the same Wi-Fi network is sufficient. However, accessing shared folders on a PC will require special applications, such as ES File Explorer (Android) or FileExplorer (iOS).

4. Sharing files and folders: how to set it up?

Now that all devices are connected to the same network, it's time to set up public accessLet's look at the process using an example. Windows 11:

1. Select the folder you want to share and right-click → Properties → Access.
2. Click Share and select users (eg All or specific accounts).
3. Set permission level: Reading (view only) or Reading and writing (editing).
4. Go to the tab Security and set up permissions for the group All (if necessary).

To access from Mac or Linux use the path smb://[PC IP address]/[folder name]. For example, if your PC's IP 192.168.1.10, and the folder is called Documents, then the path will be smb://192.168.1.10/Documents.

⚠️ Attention: If you share a folder with all users (Everyone), make sure it doesn't contain any sensitive data. It's best to create a separate account with limited rights specifically for network access.

How to share a folder using the command line?

To share a folder C:\Shared for all users with read permissions, run in CMD as administrator:

net share SharedFolder=C:\Shared /grant:Everyone,READ

To remove sharing:

net share SharedFolder /delete

5. Setting up a shared printer or MFP

There are two ways to connect a printer to a local network:

• 🖥️ Via computer — the printer is connected to one of the PCs, and the other devices print through it.
• 🌐 Direct connection to the router - if the printer supports Wi-Fi or has Ethernet port.

Method 1: Via a computer (for printers without Wi-Fi)

1. Connect the printer to the PC via USB and install the drivers.
2. Open Control Panel → Devices and Printers, right-click on the printer → Printer Properties → Access.
3. Turn on Share this printer and come up with a network name.
4. On other devices, add the printer via \\[Computer_IP]\[Printer_Name].

Method 2: Direct connection (for network printers)

1. Connect the printer to the router via Ethernet or customize Wi-Fi on the printer itself.
2. In the router's web interface, find the section Local Area Network (LAN) → DHCP and tie it MAC address printer to static IP.
3. On all devices, add the printer by specifying it IP address.

For printers HP, Canon or Epson with support AirPrint (For iOS) or Google Cloud Print (For Android) additional drivers may not be required - it is enough to connect to the same network.

6. Checking and troubleshooting

If devices cannot see each other or connect to shared resources, follow these steps:

1. Check your network connection:
   • 📶 Make sure all devices are connected to the same Wi-Fi network (check SSID).
   • 🔢 Check it out IP addresses team ipconfig (Windows) or ifconfig (Mac/Linux). They must be from the same subnet (for example, 192.168.1.x).
2. Check your sharing settings:
   • 🔄 Is network discovery enabled on all devices?
   • 🔒 Are there any blocking issues in your firewall or antivirus (for example, Kaspersky, ESET)?

Connection diagnostics:

• 📡 Check the connection between devices with the command ping [IP address]. For example:

  ping 192.168.1.10

• 🔧 If ping doesn't work, check your settings IP And gateway.

Common mistakes and their solutions:

Problem	Possible cause	Solution
The devices don't see each other	Different working groups (Workgroup)	Change the workgroup name on all PCs to WORKGROUP
No access to shared folder	Insufficient rights (Permissions)	Set up permissions in Properties → Security
Ping doesn't work	Firewall is blocking ICMP	Disable the firewall temporarily or add a rule for ICMP
Media files are lagging when playing.	Low speed Wi-Fi or channel congestion	Switch to 5 GHz or use a wired connection

⚠️ Warning: If you use VPN on one of the devices, this may block local traffic. Disable VPN or set up exceptions for the local network (192.168.1.0/24).

7. Optimization and security of the local network

To keep your network running quickly and protected from external threats, follow these recommendations:

• 🔒 Wi-Fi Security:
  • Use WPA3-PSK (or WPA2-PSK, If WPA3 (not supported).
  • Complex password (at least 12 characters with numbers and special characters).
  • Turn it off WPS - This protocol is vulnerable to hacking.
• 🛡️ Public Access Security:
  • Do not use the account Administrator For network access, create a separate user with limited rights.
  • Disable system drive sharing (C:\).
• ⚡ Speed ​​optimization:
  • For media servers and games use QoS (traffic prioritization).
  • If possible, connect stationary devices (PC, NAS, printer) via cable (Ethernet).

Critical Information: If you have devices on your network that support Wi-Fi 6 (802.11ax), enable this feature in your router settings. This will increase speed and reduce latency, especially with a large number of connected devices. However, older devices (Wi-Fi 4) may start to work slower - in this case, set up a separate network for them on the frequency 2.4 GHz.

FAQ: Frequently asked questions about setting up a local network

Is it possible to create a local network without a router, directly between two laptops?

Yes, it is possible with the function Ad-Hoc (V Windows) or regime Wi-Fi DirectHowever, this connection is less stable, doesn't support all features (such as printer sharing), and is limited to two devices. For a full-fledged network, it's better to use a router.

Why is file transfer speed via Wi-Fi lower than via cable?

This is fine: Wi-Fi is subject to interference, and the actual speed is usually 2-3 times lower than the theoretical one (for example, with the standard 802.11ac instead of those stated 1200 Mbps you will receive ~400–600 Mbps). For critical tasks (such as backups), use Ethernet.

How to connect a Smart TV or game console to a local network?

Connect your device to the same Wi-Fi network as your other devices. To access shared folders on Smart TV (For example, Samsung or LG) use the built-in file manager or applications like Plex. For PlayStation or Xbox set up DLNA server on a PC (for example, via Windows Media Player).

Is it possible to use one router for two local networks (for example, for home and office)?

Yes, if your router supports it. VLAN or Guest network. Set up two separate subnets (eg. 192.168.1.x for home and 192.168.2.x for the office) and restrict access between them through FirewallOn routers Keenetic or MikroTik This is done through the section Segments.

What should I do if shared folders stop working after a Windows update?

In new versions Windows (starting from Windows 10 1803) the protocol is disabled by default SMB1, which is used by older devices. To restore access:

1. Open Control Panel → Programs → Turn Windows features on or off.
2. Find Support for SMB 1.0/CIFS file sharing and turn it on.
3. Restart your computer.

For security reasons, it is better to update the firmware on older devices (for example, NAS or printers) to support SMB2/SMB3.