How to increase the number of WiFi users on a router

The modern home is filled with gadgets: smartphones, tablets, smart light bulbs, TVs, and laptops require a constant connection. Users often encounter a situation where a new device can't connect to the network, displaying a connection overflow or timeout error. This doesn't always mean your router If your app is broken or outdated, the problem may be due to software limitations or incorrect security settings.

Before rushing out to buy new equipment, it's worth conducting a thorough diagnosis of your current network configuration. Many manufacturers impose strict client limits by default or use encryption protocols that put excessive strain on the device's processor. Understanding your local network architecture will allow you to bypass these artificial barriers.

In this article, we will look at the technical aspects of increasing the capacity of a wireless network, from testing DHCP pool to the chipset's hardware capabilities. You'll learn to distinguish between real resource constraints and software blockages and optimize your hardware.

Analyzing current workload and identifying hidden clients

The first step should always be diagnostics. It often turns out that the limit is being reached not by your personal devices, but by unauthorized connections or forgotten devices that are just sitting idle on the network. Log in to your router's control panel, usually accessible at 192.168.0.1 or 192.168.1.1, and find the "Status" or "Network Map" section.

A list of all active ones is displayed here. clientsReview the list carefully: if you see unfamiliar MAC addresses, your WiFi may have been hacked. In this case, increasing the limit will only make matters worse, opening up your bandwidth to unauthorized users. Use the "Block" or "Blacklist" feature to filter out unwanted users.

⚠️ Note: Some smart devices (cameras, sockets) may appear in the list without a clear name, only by MAC address. Don't rush to block them; check the labels on your devices.

For precise identification, you can use third-party network scanners on your smartphone, which will reveal the device manufacturer based on the first bytes of the MAC address. This will help you understand what exactly is occupying the slot on your network. If all devices are yours and the limit has been reached, proceed to settings.

Expanding the DHCP pool and configuring addressing

The most common reason why new devices don't receive an IP address is because the range is exhausted. DHCP serversBy default, many routers offer a range of 50 or 100 addresses (e.g., 100 to 199). If your network includes a smart home with dozens of sensors, this may not be enough.

To fix this, find the LAN section in the settings menu. DHCP ServerYou need to expand the pool of allocated addresses. For example, change the final address from 199 to 254. This will allow you to connect significantly more devices without changing the core network logic.

Example of pool setup:
Start IP: 192.168.1.100
Final IP: 192.168.1.254
Rental time: 120 minutes (or less for guest networks)

It's also worth paying attention to the address lease time. If you frequently change guests or devices, reducing the lease time will free up addresses faster. However, for stationary devices, it's better to set static IP addresses or increase the lease time to reduce the load on the router's processor when constantly reconnecting.

Optimization of the 2.4 GHz and 5 GHz bands

Dual-band routers allow you to distribute the load between frequencies. Range 2.4 GHz It has lower bandwidth and is highly susceptible to interference from neighbors and household appliances. It physically cannot handle a large number of simultaneous connections without losing speed.

The ideal strategy is to free up the 2.4 GHz band, leaving it only for older devices and smart home appliances that don't require high speeds. All smartphones, laptops, and TVs that support 5 GHz It needs to be switched to this frequency. It provides a more stable connection and copes better with multiple access.

If your router supports the function Smart Connect (combining networks under one name), try disabling it. Separate the networks into MyWiFi And MyWiFi_5GThis will give you manual control over which devices connect to which, preventing powerful devices from getting stuck on the congested 2.4 GHz frequency.

Why is 2.4GHz worse for many devices?

The 2.4 GHz band has only three non-overlapping channels. When multiple clients connect, the router is forced to constantly switch between them, creating packet queues. The 5 GHz band has significantly more channels, which allows for isolated data streams and reduced collisions.

Setting up a guest network to offload primary traffic

A guest network isn't just a marketing gimmick, but a powerful segmentation tool. By creating a separate SSID for guests, you isolate their traffic from the main network. This improves security, but also helps the router manage request queues more efficiently.

Some router models, especially from Keenetic or MikroTik, allow you to prioritize or limit the speed of your guest network. If guests start downloading heavy content, your primary traffic (such as a video conference or online game) won't be affected.

Additionally, a guest network often has its own independent DHCP address pool. This effectively doubles the number of available IP addresses on your system if the main pool is already full. Enable this feature in the Guest network or Guest Zone.

⚠️ Note: Guest network settings may vary depending on your firmware version. If you don't see the "Guest Network" option, check if it's hidden in the advanced wireless settings.

Firmware update and hardware limitations

A router's software is an operating system, and like any OS, it requires updates. Manufacturers frequently release patches to optimize performance with a large number of connections or fix memory leaks. Check the section System → Software update.

However, it's important to understand the physical limitations of the hardware. Cheap routers have limited RAM. The ARP table and NAT table, which store connection data, take up RAM space. If the memory becomes full, the router will begin dropping old connections or simply stop allowing new ones, even if the configured limit hasn't been reached.

The critical threshold for budget models (with RAM up to 64 MB) is considered to be the simultaneous operation of 15-20 active devices with high traffic. If you need to connect 50+ devices, no software configuration will help - you will need to replace the hardware with a business-class model or install alternative firmware like OpenWrt, which can manage resources more efficiently.

Using Mesh systems and access points

When one router can't cope, the logical solution is to expand the network. Technology Mesh Allows you to connect multiple devices into a single seamless network. Clients automatically switch to the nearest access point with the best signal, distributing the load across multiple processors.

If purchasing a mesh system isn't in your plans, you can use an old router in Access Point mode. Connect it to the main router via a cable and configure it to the same WiFi network, but on a different channel. This will reduce the load on the main device's radio module.

When building such a system, ensure all access points operate in the same frequency range but on different channels to avoid interference. For the 2.4 GHz frequency, use channels 1, 6, and 11; they don't overlap.

Frequently Asked Questions (FAQ)

Does internet speed affect the number of connected devices?

The ISP's bandwidth doesn't directly limit the number of connections, but it does impact performance. If 20 devices start downloading updates simultaneously, the bandwidth will slow down, and the router may start dropping packets, creating the appearance of a connection problem.

Is it possible to connect more than 254 devices to one router?

Theoretically, yes, if you change the subnet mask from the default 255.255.255.0 to 255.255.0.0, which would increase the address pool to 65,000. However, no consumer router would be able to handle routing tables of this size due to a lack of processing power and memory.

Why does the router say "Obtaining IP address" and then disconnect?

This is a classic sign of a DHCP pool exhaustion or IP address conflict. A full ARP table could also be the problem. Try rebooting the router or statically assigning an IP address to the affected device outside the DHCP range.

Should I disable WPA3 to improve compatibility?

WPA3 adds slightly more overhead during the handshake, but this isn't noticeable on modern routers. Disabling it to increase the number of clients isn't recommended. It's best to disable WPS, as this protocol often causes glitches and security holes, interfering with normal network operation.