How to Limit Wi-Fi Connections: A Complete Guide

Modern routers support the simultaneous connection of dozens of devices, but this isn't always convenient. Too many gadgets on the network leads to slowing down the internet speed, increased load on the router, and the risk of unauthorized access. This is especially true for offices, guest networks, or apartment buildings, where neighbors can connect to your access point without permission.

In this article you will learn how limit the number of Wi-Fi connections on routers of popular brands (TP-Link, ASUS, Keenetic, MikroTik and others), as well as alternative access control methods. We'll cover both standard settings and advanced methods—from MAC address filtering to creating separate guest networks with limits. All instructions are adapted for users of all skill levels.

Why limit the number of Wi-Fi connections?

At first glance, the more devices connected to the network, the better—after all, it means your router can handle the load. However, in practice, an excessive number of devices creates several critical problems:

• 📉 Internet speed dropEach device consumes a portion of the channel's bandwidth. Even if the device is in standby mode, it can send background requests (updates, synchronization, etc.), consuming resources.
• 🔄 Router overload. Budget and mid-range routers (TP-Link Archer C6, ASUS RT-N12) are designed for 10–20 active connections. Exceeding this limit can result in lag, connection drops, and overheating.
• 🔓 Risk of network hackingThe more devices there are on a network, the higher the chance that one of them is infected with a virus or is used to attack other devices (for example, through protocol vulnerabilities). WPS).
• 💰 Exceeding tariff limitsSome providers (eg. Beeline or MTS) limit traffic. Extra devices can eat up all of it within a few days, especially if they're downloading updates or streaming videos.

It is especially critical to monitor connections in guest networks (for example, in a cafe or coworking space), where users can connect not only smartphones, but also laptops, tablets, and sometimes even IoT devices (smart lights, cameras). Without restrictions, such a network would quickly become unusable.

Connection Restriction Methods: Comparison of Methods

There are several ways to limit the number of devices on a Wi-Fi network. Each has its own pros and cons depending on the router model and your needs. Below is a comparison table of the main methods:

For most home users, the optimal solution would be combination of device limitation and MAC filteringThis will provide a balance between security and convenience. In offices or public places, it is better to use guest networks with limits or QoS.

⚠️ Attention: Some budget routers (for example, D-Link DIR-300 or Tenda N301) do not support connection limits. In this case, you will have to use alternative methods—MAC filtering or setting QoS.

How to limit the number of connections on TP-Link routers

Routers TP-Link (series Archer, TL-WR, Deco) offer a simple way to limit the number of devices on the network. The instructions are suitable for most models with firmware based on TP-Link UI (For example, Archer C6, TL-WR841N).

Connect to the router via cable or Wi-Fi|Open a browser and enter 192.168.0.1 or 192.168.1.1|Log in (username and password are usually admin)|Check the firmware version in the "System Tools" menu-->

Step-by-step instructions:

1. Go to the router's web interface at 192.168.0.1 (or 192.168.1.1 for some models).
2. In the menu, select Advanced Settings → Wireless → Wireless Settings.
3. Find the section Connection Control or "Limiting the number of clients" (depending on the model).
4. Activate the option Enable connection control and specify the maximum number of devices (for example, 10).
5. Save the settings with the button Save and reboot the router.

On some models (eg, TP-Link Archer C5400) the function is hidden in the section QoS → Bandwidth LimitingIn this case:

1. Go to QoS → QoS Settings.
2. Turn on QoS and select the type MAC Address Restriction.
3. Add a rule with a connection limit for all devices.

If your router does not have an explicit restriction option, use MAC address filtering:

1. Go to Wireless Mode → MAC Filter.
2. Select mode "Allow only specified devices".
3. Add the MAC addresses of your gadgets (you can find them in your smartphone settings or via the command ipconfig /all on PC).

⚠️ Attention: Once MAC filtering is enabled, all unauthorized devices will be automatically disconnected from the network. Make sure you've added all the necessary devices, including Smart TV, printers and IoT devices.

What should I do if my TP-Link router won't save settings?

If after setting restrictions and rebooting the router the changes are reset, try:

1. Update the firmware via the menu "System Tools → Firmware Update".

2. Reset the router to factory settings (using the button) Reset for 10 seconds) and repeat the setting.

3. Check if the restriction function conflicts with the enabled one QoS or Parental Control.

Limiting connections on ASUS routers

Routers ASUS (series RT-AC, RT-AX, TUF Gaming) offer more flexible settings than TP-LinkHere you can limit the number of connections for both the main and guest networks. The instructions are valid for firmware versions ASUSWRT (for example, on RT-AX88U or RT-AC68U).

Method 1: Limitation through Bandwidth Control (QoS)

1. Go to the web interface at 192.168.1.1 (login/password - admin/admin by default).
2. Go to Administration → Bandwidth Control.
3. Turn on QoS and select the type Traditional QoS.
4. In the section "Limit the number of connections" Specify the maximum number of devices (eg. 8).
5. Apply the settings and reboot the router.

Method 2: Filtering by MAC addresses

1. Go to Wireless Network → MAC Filter.
2. Select mode "Allow only specified".
3. Add the MAC addresses of your devices (you can copy them from the list of connected clients in Network map).
4. Save the changes.

Method 3: Create a guest network with a limit

1. On the menu Guest network (tab Wireless network) enable guest access.
2. Please specify a separate network name (SSID) and password.
3. In the section "Client Restriction" set a limit (for example, 5 devices).
4. Limit the speed for guests in QoS, if necessary.

On routers ASUS with firmware Merlin (alternative firmware) additional options are available. For example, you can configure automatic shutdown of devices after a certain period of inactivity:

nvram set wl0_assoclimit=10
nvram set wl1_assoclimit=10
nvram commit
reboot

This command limits the number of connections to 10 devices for both ranges (2.4 GHz And 5 GHz).

Setting up restrictions on Keenetic routers

Routers Keenetic (series Giga, Hero, Viva) have an intuitive interface and support connection restrictions both through the web configurator and through the mobile application KeeneticLet's consider both methods.

Method 1: Via the web interface

1. Open the control panel at my.keenetic.net or 192.168.1.1.
2. Go to the section Home Network → Devices.
3. Find the block Connection Limitation and activate it.
4. Specify the maximum number of devices for each network (2.4 GHz And 5 GHz separately).
5. Save the settings.

Method 2: Via a mobile app

1. Open the app Keenetic on a smartphone.
2. Go to the section Devices → Wi-Fi Settings.
3. Select your network and tap on Connection Limitation.
4. Set a limit (for example, 6 devices) and save.

Method 3: Filtering by MAC addresses

1. In the web interface, go to Home Network → Segments.
2. Select your Wi-Fi network and click Security Settings.
3. Activate MAC address filter and add allowed devices.

Peculiarity Keenetic - the ability to create several networks with different restrictionsFor example, you can do:

• 🏠 Basic network for family (unlimited).
• 👨‍💼 Guest network with a limit of 3 devices.
• 🎮 Gaming network with traffic priority for consoles.

⚠️ Attention: On routers Keenetic with firmware below 3.6 The connection limiting feature may not work reliably. Please update the firmware in the section Updates, if you encounter problems.

Advanced Techniques: QoS and VLANs for Access Control

If standard connection restriction methods don't work for you (for example, due to a large number of devices or specific security requirements), you can use advanced methods:

• 📊 QoS (Quality of Service) — allows you to not only limit the number of devices but also prioritize traffic. For example, you can give your laptop maximum speed, while limiting smartphones to 10 Mbps.
• 🌐 VLAN (Virtual LAN) — creation of virtual local area networks with isolated access. Suitable for offices where employees and guests need to be separated.
• ⏱️ Access schedule — time limitation of connections (for example, allow guests access only from 9:00 to 18:00).

Configuring QoS using a MikroTik router as an example

Routers MikroTik (For example, hAP ac² or RB4011) allow you to flexibly configure restrictions through Winbox or WebFig:

1. Connect to the router via Winbox.
2. Go to IP → Firewall.
3. Create a new rule in the tab Filter Rules:

/ip firewall filter add chain=forward connection-state=new \
src-address=192.168.88.0/24 action=drop limit=10,5:packet

4. This rule will limit new connections to 10 devices on the network. 192.168.88.0/24.

Creating a VLAN for a Guest Network

On routers with VLAN support (for example, ASUS RT-AX86U or TP-Link Omada) you can create a separate virtual network for guests:

1. In the web interface, go to Local Area Network → VLAN.
2. Create a new VLAN (eg. VLAN 10) and assign him a separate SSID.
3. In the VLAN settings, limit the number of connections to the desired value.
4. Configure your firewall (Firewall) so that the guest network does not have access to the main one.

Important: Configuring VLANs and QoS requires knowledge of network protocols. Incorrect rules may result in loss of access to the router. Before experimenting, back up your configuration!

How to check how many devices are connected to Wi-Fi

Before limiting connections, it's helpful to know how many devices are already on your network. This will help you choose the optimal limit and identify unnecessary devices.

Method 1: Via the router's web interface

Most routers have a section with a list of connected devices:

• TP-Link: Wireless Mode → Wireless Mode Statistics.
• ASUS: Network Map → Devices.
• Keenetic: Home Network → Devices.
• MikroTik: IP → DHCP Server → Leases.

Method 2: Via mobile apps

Many manufacturers offer applications for managing the router:

• 📱 TP-Link Tether (For TP-Link).
• 📱 ASUS Router (For ASUS).
• 📱 Keenetic (for routers Keenetic).

These applications have a tab with active connections, where they are displayed IP, MAC addresses and device names.

Method 3: Using third-party programs

If the router does not show a list of devices, use utilities to scan the network:

• 🖥️ Advanced IP Scanner (Windows).
• 📱 Fing (Android/iOS).
• 🐧 nmap (Linux/macOS, command: nmap -sn 192.168.1.0/24).

Method 4: Via the command line (Windows)

Open Command line (Win + R → cmd) and enter:

arp -a

This command will show all devices that have recently interacted with your PC. For a more detailed analysis, use:

net view

If you see unknown devices in the list, it could mean that neighbors or intruders have connected to your network. In this case:

1. Change your Wi-Fi password to a more complex one (use WPA3, if the router supports it).
2. Enable MAC address filtering.
3. Turn it off WPS (this is a vulnerable protocol).

Common mistakes and how to avoid them

Users often encounter common issues when setting connection limits. Let's look at the most common errors and how to resolve them.

Error 1: The router does not save settings

If the restrictions are reset after rebooting the router:

• Check if the router memory is full (in some models D-Link this will reset the settings).
• Update your firmware to the latest version.
• Reset your router to factory settings and configure the restrictions again.

Error 2: Legitimate devices are blocked

If your gadgets stop connecting after enabling MAC filtering:

• Make sure you entered the MAC addresses correctly (they are case sensitive!).
• Check if the MAC address of the device has changed (for example, after resetting the smartphone).
• Temporarily disable filtering to check what the problem is.

Error 3: Guest network does not limit connections

If the limit in the guest network does not work:

• Make sure the guest network is using a separate one SSID And VLAN (if supported).
• Check if the guest network conflicts with the main network (for example, if they have the same range IP).
• Reboot your router after applying the settings.

Error 4: After setting up QoS, the Internet became slower

If after switching on QoS the speed dropped:

• Check if device limits are set too strict.
• Turn it off QoS and check the speed without it - perhaps the router can't handle the rules.
• Update firmware - in older versions QoS might not work correctly.

Error 5: Unknown devices keep connecting

If, despite all the settings, other people's gadgets appear on the network:

• Change your Wi-Fi password to a more complex one (use at least 12 characters with numbers and special characters).
• Turn it off WPS - This protocol is vulnerable to brute force attacks.
• Turn on hiding SSID (Although this is not a panacea, it will make it more difficult for outsiders to connect).
• Check your router for malware (for example, through MikroTik You can scan traffic for suspicious activity).

⚠️ Attention: If you suspect your router has been hacked (for example, if the settings are changing by themselves), perform a hard reset and set it up again. Use a strong password to access the web interface (not admin/admin!).

FAQ: Answers to Frequently Asked Questions

Is it possible to limit connections to specific devices?

Yes, use it for this MAC address filteringIn your router settings, add the addresses of devices you want to block to the "blacklist" or those allowed to access to the "whitelist." On some routers (for example, ASUS) you can also limit the speed for specific gadgets through QoS.

How do I limit connections on a router from a provider (for example, Rostelecom or Beeline)?

Routers from providers (for example, Sagemcom from Rostelecom or Sercomm from Beeline) often have limited settings. Try:

1. Login to the web interface (usually 192.168.1.1 or 192.168.0.1).
2. Find a section Wi-Fi → Security Settings.
3. If there is no restriction option, use MAC filtering or change your password to a more complex one.

If nothing helps, contact your provider's support team and ask them to provide you with a router with advanced settings.

How many devices can be connected to Wi-Fi without losing speed?

It depends on the router model and connection type:

• Budget routers (TP-Link TL-WR840N, D-Link DIR-615) — to 10–15 devices.
• Middle class (ASUS RT-AC66U, Keenetic Giga) — to 20–30 devices.
• Top models (ASUS RT-AX88U, Netgear Nighthawk) — to 50+ devices.

However, even on powerful routers active use (streaming, gaming, downloads) more than 5–7 devices at the same time can lead to lag. It's best to limit the number of connections to 10–15 for home network.

Is it possible to limit connections by time (for example, only during the day)?

Yes, many routers support it. access scheduleFor example, on ASUS:

1. Go to Access Control → Schedule.
2. Create a rule that specifies days and hours (for example, with 9:00 to 18:00).
3. Apply it to a guest network or specific devices.

On TP-Link similar function