Modern wireless router While capable of handling dozens of devices simultaneously, users often encounter artificial or technical limitations. When a new smartphone, smart lightbulb, or gaming console arrives, the system may stop assigning IP addresses to new devices. This creates the impression that the network is overloaded, even though the physical potential of the equipment has not yet been exhausted.
The problem lies not only in the hardware, but also in the software settings, which by default limit the number of clients for the sake of stability. To understand how to increase this limit, it is necessary to understand the home network architecture and parameters. DHCP serversIn this article, we'll take a detailed look at methods for increasing the number of available slots for your devices.
Before attempting complex manipulations, it's important to assess the current situation. Users often attempt to connect a 51-device device to a router that's configured out of the box to handle 32 or 64 clients. The default DHCP pool range in many consumer routers is limited to addresses from 100 to 199, which gives a total of 100 slots, but is often narrowed down to 50. Understanding this mathematics is the first step to solving the problem.
Analysis of technical limitations of equipment
Every device on the network, whether it be Wi-Fi router A wireless router, or access point, has physical limitations on how much traffic it can handle. The processor and RAM determine how many simultaneous connections can be established without losing performance. Budget models often have a hard software limit that prevents the number of connections from exceeding a certain number, even if the processor can handle the load.
There's a difference between the number of devices in a wired network (LAN) and a wireless network (WLAN). A wireless interface operates in half-duplex mode, meaning it can't transmit and receive data simultaneously. The more clients, the longer it takes to poll each one, reducing the overall channel throughput.
⚠️ Attention: Forcing more clients on a weak router can result in a drop in internet speed for all users and occasional connection interruptions.
To check the current capabilities of your equipment, please refer to the model specifications. If you are using an older standard 802.11n, then increasing the number of users may not be practical due to a narrow data transmission channel. In such cases, it's better to consider purchasing a more powerful router with support Wi-Fi 6.
It's also worth keeping in mind that some providers impose their own restrictions on rental equipment. In this case, increasing the number of users is only possible by replacing the device with a personal one or contacting the operator's technical support.
Configuring a DHCP server to expand the address pool
The main tool for managing the number of connections is DHCP serverIt's the IP address pool that distributes IP addresses to all devices connected to the network. If the address pool is small, new devices simply won't be able to obtain a "digital pass" to access the internet. Expanding this range is the most effective software solution to this problem.
To access the settings, you need to go to the router's web interface. This is usually done at 192.168.0.1 or 192.168.1.1After authorization, find the section responsible for the local network. It may be called LAN, Network or Local Network. Within this section, look for the subsection DHCP Server.
Here you'll see the "Start IP Address" and "End IP Address" fields. By default, the range might be, for example, from 192.168.1.100 to 192.168.1.150. This gives a total of 50 slots. You can change the end address to 192.168.1.254, which will automatically increase the number of available addresses to 154.
☑️ Checking DHCP settings
All currently connected devices may require a network reconnection to obtain a new address from the expanded pool. Ensure you don't assign static IP addresses outside this range to avoid conflicts.
Below is a table of address pool configuration examples for different use cases:
| Scenario | Initial IP | Final IP | Number of slots |
|---|---|---|---|
| Standard (office) | 192.168.1.100 | 192.168.1.150 | 51 |
| Extended (house) | 192.168.1.2 | 192.168.1.254 | 253 |
| Guest network | 192.168.2.100 | 192.168.2.200 | 101 |
| IoT segment | 192.168.3.10 | 192.168.3.110 | 101 |
Using a guest network to relieve the main channel
One of the most elegant ways to increase the actual number of users without putting a strain on the main network is activation guest Wi-FiThis feature creates a virtual access point with a separate IP address range and isolation from your personal files. The guest network is ideal for connecting guests' smartphones and smart home devices.
Most modern routers allow you to set up to three guest networks simultaneously. Each can have its own speed and access time limits. This not only increases the total number of connected devices but also improves security, as guests won't have access to your network storage or printer.
To activate, go to the section Wireless or Wi-Fi and find the item Guest NetworkEnable the feature, set the network name (SSID) and password. Note that the guest network also has its own pool of DHCP addresses, which typically does not overlap with the main one.
Some router models allow you to prioritize traffic. Make sure your guest network is set to a low priority to prevent guest activity from interfering with your work or online gaming. This is especially important if your internet connection is limited.
Hiding SSIDs and Filtering MAC Addresses
While these methods do not increase the physical connection limit, they help control the user list and free up space for the devices you need. Hiding the SSID Makes your network invisible to outside scanners. Devices won't automatically connect to it, wasting slots.
To hide the network, go to the wireless settings and find the option Enable SSID BroadcastDisable it. Now, to connect a new device, you'll have to manually enter the network name and password. This is a bit of a hassle, but it ensures that only those you allow on the network are connected.
An even more rigorous method is MAC filteringYou can create a "whitelist" of devices that are allowed to connect. The router will ignore connection requests from all other devices, even if they know the password. You can find the MAC address in the network connection properties of any device.
⚠️ Attention: Be careful when enabling MAC filtering. If you mistype the address or lose track of your approved devices, you could block access to the router, even for yourself.
Combining SSID hiding and MAC filtering creates a reliable barrier. However, keep in mind that an experienced user can detect a hidden network and spoof the MAC address, so these methods aren't absolute protection, but they are excellent for preventing accidental connections from neighboring devices.
Separation of the 2.4 GHz and 5 GHz frequency bands
Modern dual-band routers often combine 2.4 GHz and 5 GHz networks under one name (function Smart Connect). While this is convenient, it can create confusion and inefficient load balancing. Separating these networks into two different names (SSIDs) allows for manual device allocation and doubles the effective network capacity.
The 2.4 GHz band has a longer range, but is slower and noisier. It's suitable for smart plugs, older laptops, and devices located far from the router. The 5 GHz band offers higher speeds but has a shorter range. It's best for connecting TVs, gaming consoles, and work computers.
By separating the networks, you effectively create two independent service queues. The router will process requests from 2.4 GHz clients separately from 5 GHz clients, reducing the processor load and reducing the number of collisions in the air.
Example of network naming:Home_WiFi_2.4
Home_WiFi_5G
To separate the bands, find the frequency splitting option in the wireless settings. It's often hidden in the advanced settings. After assigning two names, manually connect the devices to the appropriate network based on their needs and location.
Why can't older devices see the 5 GHz network?
Some older gadgets (manufactured before 2013) don't physically have a module for 5 GHz operation. They will only see the 2.4 GHz network, even if you split it.
Channel and bandwidth optimization
Even if the user limit is not formally reached, the network may operate slowly due to airtime congestion. Channel width plays a key role. In the 2.4 GHz band, a 20 MHz bandwidth is recommended, as 40 MHz often leads to interference from neighboring routers, reducing actual throughput.
Choosing a clear channel is also critical. In apartment buildings, the airwaves are cluttered with signals. Use mobile Wi-Fi analyzer apps to find the least congested channel (usually 1, 6, or 11). Switching to a clear channel can "revitalize" the network, allowing more devices to connect without sacrificing speed.
The 5 GHz band is better, as it has more non-overlapping channels. Here, you can safely set the channel width to 80 MHz or even 160 MHz, if the router and clients support the standard. Wi-Fi 6This will increase throughput and reduce latency for each connected user.
Automatic channel selection often works incorrectly. The router may poll the airwaves infrequently and become stuck on a busy channel. Manually configuring the radio module's parameters provides a more predictable result and connection stability for a large number of clients.
Frequently Asked Questions (FAQ)
Does the number of connected devices affect internet speed?
Yes, it does. The bandwidth is shared among all active users. If one client is downloading a large file, the others will experience a lack of speed. Furthermore, the router itself uses CPU resources to service each connection, which can slow down the entire network.
Is it possible to connect more than 253 devices to one router?
Theoretically yes, if you change the subnet mask to 255.255.254.0 (or shorter), but practically any home router won't be able to handle such a large number of clients due to a lack of RAM and processor power. Enterprise-grade equipment is required for such a large scale.
How do I know who is connected to my Wi-Fi?
Go to the router's web interface and find the section Device List, Client List or Attached DevicesAll active connections are displayed there, along with MAC addresses and device names. Compare the list with your existing devices.
Should I buy an additional router or access point?
If you have more than 30-40 smart home devices and gadgets, a single router may not be able to handle it. Purchasing an access point or a second router in access point mode will distribute the load and increase the overall network capacity.