How to split WiFi internet speed on a Zyxel router

In a modern home network, it's common for one user to be actively downloading files or watching 4K video, while another user experiences low ping in games or slow video calls. Speed ​​splitting On Zyxel routers (now more commonly known as Keenetic), it intelligently distributes bandwidth between connected devices. This ensures smooth operation of all devices, be they smartphones, laptops, or Smart TVs.

The setup process doesn't require in-depth knowledge of networking technologies, as the web configurator interface is designed to be intuitive. You don't need to write complex scripts; simply configure the settings correctly. QoS (Quality of Service) or use flexible traffic prioritization rules. In this article, we'll take a detailed look at how to implement fair distribution of network resources.

It is worth noting that traffic management capabilities may vary depending on the operating system installed. KeeneticOS and a specific hardware model. Some budget versions may have reduced functionality compared to the top-of-the-line models in the series. Giga or UltraTherefore, before starting the setup, make sure that your device supports the required traffic management features.

QoS and traffic management principles

Technology Quality of Service Quality of Service (QoS) is the primary tool for managing network bandwidth. Unlike simple speed limiting, QoS allows you to prioritize different types of traffic. For example, you can prioritize data packets for online gaming or VoIP calls, even if the channel is completely saturated with torrent downloads.

Zyxel routers analyze the data passing through them and mark it according to preset rules. If the channel is overloaded, low-priority devices will receive fewer resources, freeing up space for mission-critical applications. This is especially important for networks with dozens of devices operating simultaneously. IoT, computers and multimedia consoles.

• 🚀 Prioritization allows you to allocate a minimum guaranteed bandwidth to important tasks.
• 🛑 Maximum speed limitation prevents a single device from monopolizing the channel.
• 🎮 Reducing latency (Ping) in games is achieved by prioritizing UDP packets from game servers.
• 📺 Streaming video stability is ensured by allocating resources to media services.

⚠️ Please note: QoS performance is directly dependent on the router's processor performance. If you set up overly complex encryption and filtering rules on a weaker device, overall internet speed may drop due to high CPU load.

It's important to understand the difference between limiting a specific user's speed and setting priorities. A limit is a hard ceiling beyond which a device won't be able to increase its download speed. Priority, on the other hand, is dynamic: if the channel is free, the device will receive all available speed, but if there's competition, it will defer to more important tasks.

Preparing to set up a Zyxel network

Before making any changes to the router's configuration, you need to access the web management interface. Typically, this is accomplished by entering the gateway IP address (often 192.168.1.1 or my.keenetic.net) in the browser's address bar. Make sure your device is connected to the router's network via cable or Wi-Fi.

You will need administrator rights to make changes. If you haven't changed the default credentials, try using the login admin and the password indicated on the sticker on the bottom of the device. For security purposes password It is recommended to change it immediately after the first authorization.

The interface of modern Zyxel (Keenetic) routers may look different depending on the firmware version. In newer versions NDMS The settings are organized into logical blocks, making navigation easier. If you're using older firmware, the interface may differ, but the setup logic remains the same.

It's recommended to back up your current configuration before experimenting. This will allow you to quickly restore network functionality in the event of unexpected errors or configuration failures. The configuration backup function is usually located in the system tools section.

Setting speed limits for specific devices

The most straightforward way to share speed is to set hard limits for specific devices. In the Zyxel ecosystem, this is often accomplished by creating access profiles or configuring rules in the "Client List" section. You can assign each device its own profile with specified parameters.

To get started, go to the section where connected clients are displayed (often called "My Networks and Wi-Fi" or "Client List"). Find the desired device in the list by MAC address or name. Click on it to open detailed settings.

In the menu that opens, look for the item related to speed limit (Speed ​​Limit). Here you can set the maximum speed for incoming (Download) and outgoing (Upload) traffic. Values ​​are usually specified in kilobits or megabits per second.

After applying the settings, your device may require a network reconnection for the new settings to take effect. Test the speed on the restricted device using online services to ensure the rules are working correctly.

Using access profiles and schedules

A more flexible management tool is creating access profiles. A profile is a set of rules that can be applied to a group of devices or a specific user. Profiles can set not only speed limits but also access schedules and content filters.

To create a profile, go to the appropriate menu section (often "Access Profiles" or "Internet Access"). Click the "Add New Profile" button and give it a descriptive name, such as "Guests" or "Children." In the profile settings, specify the desired bandwidth limits.

A unique feature of Zyxel profiles is the ability to schedule them. You can configure speed limits to apply only during certain hours, such as weekday evenings when the whole family is home and network usage is at its highest.

• 🕒 Flexible scheduling allows you to change rules depending on the time of day.
• 👥 Device grouping simplifies policy management for entire categories of gadgets.
• 🔒 Ability to block access to specific resources within a profile.
• 📉 Automatic application of limits without manual reconfiguration of each device.

Profiles are applied by assigning them to specific MAC addresses in the client list. This means that even if the user changes their IP address (unless static binding is used), the speed limiting rules will remain in place, as they are bound to the physical address of the network card.

⚠️ Note: The interface and menu names may vary depending on the router's firmware version. If you don't see the described options, check the official documentation for your specific model on the manufacturer's website.

Prioritizing traffic for gaming and video calls

Instead of simply throttling bandwidth, it's often more effective to prioritize traffic properly. The QoS mechanism in Zyxel routers allows traffic to be allocated to a separate, high-priority queue. This is critical for online games, where a delay of a few milliseconds can be decisive, and for video conferencing.

To configure prioritization, go to the QoS section. Here you will see a list of rules. You can create a new rule by specifying the application type (e.g., "Games" or "VoIP") or a specific port/protocol. The router will mark packets matching this rule as high priority.

Why is priority better than restriction?

Hard speed limits can make it impossible to use modern services that require bursts of speed, such as loading heavy web pages. Prioritization, on the other hand, allows the device to use the entire bandwidth when it's available, but to prioritize other important tasks when there's competition.

There's also the option to set up guaranteed bandwidth. For example, you can reserve 20% of the channel for video calls. This means that even if the network is fully loaded with torrents, the video call will not be interrupted and will continue smoothly using the reserved bandwidth.

It's important not to overdo it with the number of high-priority rules. If you assign high priority to too many services, the prioritization becomes meaningless, as everything becomes "important." Reserve high priority only for truly latency-sensitive applications.

Guest network as a way to isolate traffic

A great way to share speeds and secure your main network is to use a guest Wi-Fi profile. A guest network in Zyxel routers operates as a separate logical interface, allowing you to apply your own speed and access limiting rules.

When guests connect to the guest network, they won't see your primary devices (printers, NAS, computers), which improves security. You can also set a strict speed limit for the guest network to prevent their activity from interfering with your work.

Guest network settings are available in the Wi-Fi section. Enable the guest network, assign it a name (SSID) and password. Then, in the guest network settings, find the speed limit settings and set the desired values. This is the simplest and most effective method of separating traffic for temporary users.

Using separate frequency bands (e.g. 2.4 GHz for guests and 5 GHz for primary users) also helps to physically separate traffic, reducing competition for airtime, although it is not a software speed limiter.

Diagnostics and verification of results

After configuring all the parameters, you need to ensure that the rules are working correctly. The easiest way to check is to run a speed test on the device for which restrictions have been set and compare the results with the set limits. Use popular services like Speedtest or Fast.com.

Routers often have built-in traffic monitors in their web interfaces. Go to the "Monitoring" or "Statistics" section to see the actual bandwidth consumption of each device in real time. This can help identify anomalies or devices attempting to circumvent restrictions.

If you notice that your speed is not being limited or your priorities are not working, please check the following:

• ✅ Is the QoS function activated in the global settings?
• ✅ Are the traffic directions selected correctly (WAN-to-LAN or LAN-to-WAN).
• ✅ Does the antivirus or firewall on the client device block test packets?
• ✅ Does the MAC address of the device for which the rule was created match?

⚠️ Please note: Wi-Fi speed tests may show results below the set limits due to radio signal quality, interference, or the client device's antenna characteristics. For a more accurate test, it's best to use a cable connection.

Regular network monitoring will help you understand how your traffic consumption patterns are changing and adjust your settings accordingly. For example, after purchasing a new 4K TV, you may need to adjust your priorities to ensure it doesn't choke the rest of the network when updating content.

Frequently Asked Questions (FAQ)

Is it possible to limit the speed only for certain websites?

Yes, Zyxel routers with DNS or URL filtering support allow you to create rules that limit access or speed for specific domain names. However, this requires more complex configuration and may not work with websites using encrypted DNS (DoH).

Will the speed setting be reset after rebooting the router?

No, all settings, including access profiles and QoS rules, are saved in the device's non-volatile memory. After a reboot, the router will automatically apply all previously saved configurations.

Does per-user speed limiting affect overall internet speed?

Limiting the speed for one user doesn't increase the overall speed of the provider's connection, but it frees up resources for other users. This improves connection quality for those not affected by the limitation, eliminating congestion in the local network.

Do these settings work if the router is connected in access point mode?

In Access Point mode, most router functions, including QoS and access profiles, are disabled, as the main router handles traffic management. To share speeds in this case, you need to configure the main device.