The situation when a new smartphone or laptop refuses to connect to the home network due to an overflowing client list is familiar to many owners of budget equipment. Users often encounter the following: router It simply stops issuing IP addresses, ignoring authorization attempts from new devices. This could be due to software limits set by the manufacturer to conserve processor resources, or to settings that were previously changed or applied by the ISP.
In modern conditions, when more than 15 devices can work simultaneously in an apartment, smart light bulbs From refrigerators to gaming consoles and 4K TVs, default settings often prove insufficient. Limiting the number of connections It becomes a bottleneck, preventing the full use of digital assets. This problem can be solved programmatically by changing DHCP server settings or disabling filters in the router interface.
Before attempting complex manipulations, it's important to clearly understand what exactly is blocking the connection. It could be an overflowing table. NAT, an exhausted DHCP address pool, or a hard limit built into the device's firmware. In some cases, firmware intervention or hardware replacement is required if the hardware's capabilities are exhausted. Below, we'll discuss the main methods for expanding the capabilities of your local network.
It's important to note right away: if you're using a plan with a device limit from your provider, your router settings may not help. In such cases, the provider controls the number of devices. MAC addresses on your side. However, in 90% of cases, the problem lies in the local settings of your router.
Analysis of current DHCP address pool and limitations
The first step in solving the problem is to diagnose the current state of the network. The main mechanism that controls the assignment of addresses to devices is DHCP serverIt is responsible for ensuring that each device receives a unique IP address. If the address range is too small, new devices simply won't be able to register on the network. You need to log in to the router's web interface, usually at 192.168.0.1 or 192.168.1.1.
Find the section responsible for LAN or DHCP settings. Here you will see the starting and ending IP address. For example, if the range is set from 192.168.1.100 to 192.168.1.110, then only 11 devices can be connected to the network at a time. This is extremely limited for a modern home. Expanding this range is the first and safest way. increase the number of connections.
It's also worth checking the address lease time. If this parameter is set to several days, then even after a device is disconnected, its address will remain reserved for it, taking up space in the pool. Reducing the lease time will free up addresses faster, allowing new devices to connect to the network. WiFi networks.
Keep in mind that changing DHCP settings requires rebooting all clients to obtain the new addresses. Make sure you don't exclude the router's address from the range, otherwise you will lose access to management.
Setting limits in the TP-Link and ASUS interfaces
Popular network equipment manufacturers such as TP-Link And ASUS, often implement parental control features or guest networks with strict limits. In new firmware TP-Link If you have a blue interface, check the "Wireless" section. There may be a "Max Clients" option.
For devices ASUS The situation is similar: in the "Wireless Professional" section or in the Guest Network settings, there's often a default limit of 3-5 devices. This is to prevent guests from overloading the channel. Removing this limit allows more devices to connect to the main SSID.
⚠️ Please note: Some budget models have a hardware limit of 10-15 devices. Removing this limit in the interface software may result in processor instability and constant connection interruptions.
If you encounter such a setting, change the value to the maximum available or to 32/64, depending on the model. After saving the settings, the router may reboot. Check if previously rejected devices can connect.
Managing clients on Keenetic and MikroTik routers
Equipment from Keenetic And MikroTik is considered more professional and provides flexible management tools. In the system Keenetic OS There's no hard limit on the number of WiFi clients, but there are restrictions based on bandwidth and priorities. However, if "Guest Network" mode is enabled, there may be a speed limit or a host limit.
IN MikroTik (RouterOS) The situation is more complicated. Here, the administrator sets all the parameters themselves. Often, the limitation arises due to the settings max-station-count in the wireless security profile or due to insufficient space in the ARP table. To increase the limit, go to the menu Wireless and check the interface parameters.
It's also worth checking the scripts and firewall in MikroTik. Sometimes users or configuration managers set rules that block connections from more than N devices. The command to check current connections in the terminal looks like this:
/ip dhcp-server lease printThis command will display a list of all allocated addresses. If the list is full and no new devices connect, the pool is exhausted. You can expand it in the section IP -> DHCP Server -> Networks.
Secret command for MikroTik
If you can't find the limit setting in the WinBox interface, try entering the following in the terminal: /interface wireless set [find] max-station-count=2007. This will remove the software limit on the number of stations.
Comparison of the capabilities of different router models
Not all devices are equally capable of handling a large number of connections. Hardware plays a crucial role: RAM capacity and processor power directly impact how many clients can be served. router without losing speed. Below is a table showing approximate limits for different hardware classes.
| Device class | Example of a model | Recommended client limit | Peculiarities |
|---|---|---|---|
| Budget (N300) | TP-Link WR840N | 10-15 devices | Weak processor, small amount of RAM |
| Medium (AC1200) | Keenetic Start | 30-40 devices | Stable operation, good software |
| High (AX3000+) | ASUS RT-AX82U | 50-70 devices | WiFi 6 support, powerful CPU |
| Professional | MikroTik hAP ac3 | 100+ devices | Flexible configuration, requires knowledge |
As the table shows, trying to connect 50 smartphones to a cheap 1,000-ruble router is doomed to failure. In such cases, connection limitation is physical in nature. The device simply can't handle data packets for all clients.
If your router is on the budget side but you have a lot of devices, the best solution is to purchase an additional access point or upgrade to a mesh system. This will distribute the load across multiple nodes.
Bypassing provider restrictions
Sometimes the problem isn't with the router, but with the internet provider's policy. Some operators limit the number of devices that can simultaneously access the internet on a single plan. This is usually achieved through tethering. MAC address the first connected device or through packet TTL analysis.
If your ISP blocks data sharing, the easiest way to bypass it is to clone the MAC address. You need to find the MAC address cloning section in your router settings. Network -> MAC Clone and copy the address of a computer that was previously successfully authenticated to the provider's network. This often helps if the restriction is at the MAC filtering level.
A more complex method is to change the TTL (Time To Live) parameter. ISPs often detect internet tethering because the TTL of packets from a phone differs from the TTL of packets from a computer. By changing the TTL value on the router (usually to 64 or 128), you can hide the fact that you're tethering. For Linux-based routers, this is done using the following commands in the terminal:
iptables -t mangle -A POSTROUTING -o ppp0 -j TTL --ttl-set 65Where ppp0 — this is the name of your connection interface to your ISP. After applying the rules, you must reboot the router and reconnect your devices.
⚠️ Please note: Circumventing your provider's restrictions may be against the terms of your contract. If detected, your provider may charge you extra for the "Tethering" service or upgrade your plan to a more expensive one.
Alternative solutions and creating a mesh network
If software methods have been exhausted and the number of devices continues to grow, it is worth considering upgrading the home network architecture. Mesh systems A mesh network allows you to combine multiple routers into a single network with seamless roaming. In this case, the load is distributed among the nodes, effectively multiplying the client limit.
You can use your old router in Access Point mode. To do this, connect its LAN port to the main router's LAN port with a cable and disable the DHCP server on the second device. This way, the second router will simply broadcast the signal, while the main device, whose limits we've already configured, will handle the distribution of addresses.
Another effective solution is to separate networks by frequency. Switch all demanding devices (TVs, consoles) to the 5 GHz band, and for For smart home devices (light bulbs, sensors), use 2.4 GHz. Many modern routers allow you to create separate SSIDs for different bands, which helps avoid conflicts and airwave congestion.
☑️ Checklist for increasing your connection limit
Frequently Asked Questions (FAQ)
Why does the router say "Unable to connect to this network" on my phone?
Most often, this means that the router has run out of free IP addresses in the DHCP pool or has reached the maximum number of clients it supports. WiFi moduleTry rebooting your router or reducing the number of active devices.
Is it possible to connect more than 10 devices to a cheap router?
Technically, it's possible, but stability isn't guaranteed. The processor will be overloaded, ping will increase, and internet speed will drop for all users. For 10+ devices, it's better to use mid-range models.
Does antivirus affect the number of connections?
Antivirus software on your computer doesn't affect router limits. However, if one of the connected devices has a virus, it can create multiple background connections, filling the router's NAT table and blocking other devices.
How do I know how many devices are currently connected to my WiFi?
Access the router's web interface. The number of active connections and their MAC addresses are displayed on the main page or in the "Client List" (DHCP Clients List) section.