How to Remove Speed ​​Limits on a Wi-Fi Router: A Complete Guide (2026)

Have you noticed that your Wi-Fi is slower than your provider's plan promises? Or are some devices on the network being artificially slowed down by your router? Speed ​​limitations can be caused by both the router's settings and your internet provider's policies. In 80% of cases, the problem can be resolved without replacing the hardware—just by properly configuring your existing router.

In this article, we'll cover all possible scenarios: from basic settings in the web interface to advanced methods like flashing firmware. DD-WRT or use Qos (Quality of Service). We'll pay special attention to common pitfalls: why speeds may not improve after restrictions are lifted, how to distinguish between hardware and software router limits, and what to do if your provider blocks changes.

Let us warn you right away: some methods require technical training. For example, working with Telnet Reflashing or re-flashing your router can void your warranty or cause the device to malfunction. But don't worry—we'll describe each step in detail and point out the best places to start for beginners.

Reasons for router speed limitation

Before you change anything, it's important to understand Who exactly limits the speed?: your ISP, router, or your network equipment. Here are the key culprits:

• 🔌 Provider: artificially “cuts” the speed according to the tariff, applies FUP (Fair Usage Policy) or blocks ports for torrents/games.
• 📡 Router: chipset hardware limitations (eg Realtek RTL8196C won't handle more than 100 Mbps), incorrect settings QoS or included Bandwidth Control.
• 🖥️ Devices on the network: old smartphones/laptops with Wi-Fi standard 802.11n (max 300 Mbps) or drivers that limit bandwidth.
• 🔗 Cables and ports: usage Fast Ethernet (100 Mbps) instead Gigabit Ethernet (1 Gbps) on a router or PC.

To diagnose the problem, connect your computer to the router. via cable and check the speed on SpeedtestIf the speed matches the plan's plan via cable, but not via Wi-Fi, the router or client device is to blame. If the cable speed is also limited, the issue lies with the provider or its equipment.

Method 1: Disabling Bandwidth Control in the web interface

The most common reason for artificial limitation is the inclusion Bandwidth Control (Bandwidth control). This feature is available in almost all routers. TP-Link, ASUS, D-Link And KeeneticIt allows you to limit the speed for individual devices or the entire network.

How to disable:

1. Open the router's web interface (usually at 192.168.0.1 or 192.168.1.1). The default login and password can be found on the device sticker.
2. Go to the section Bandwidth Control (at ASUS it could be Adaptive QoS, at Keenetic — Speed ​​Limit).
3. Turn off the function (set the switch to the position Off or uncheck the box Enable Bandwidth Control).
4. Save the settings and reboot the router.

If your router does not have an explicit option Bandwidth Control, look for it in subsections like Advanced Settings or QoSFor example, in MikroTik This function is called Queue Tree.

⚠️ Attention: On some routers (for example, Zyxel Keenetic) shutdown Bandwidth Control may reset traffic priorities. If you have configured rules for IP telephony or IPTV, you will need to restore them manually.

Method 2: Configuring QoS (Quality of Service)

QoS — is a traffic prioritization system. In theory, it should improve network performance, but in practice it often results in artificial speed limitation. For example, if the settings QoS If a limit is set for torrents or online games, the router will throttle these types of traffic.

How to set up QoS Right:

• 🔧 Disable QoS completely, if you do not use prioritization (for example, for VoIP or IPTV). Most home networks do not need this feature.
• ⚙️ If QoS required, install the actual speed of your tariff in the fields Upload/Download (do not exceed actual values!).
• 📊 Check your prioritization rules: routers often limit traffic by default P2P-traffic (torrents) or UDP (games).

Example of the settings path QoS:

• TP-Link: Advanced → QoS → Settings
• ASUS: Adaptive QoS → Bandwidth Limiter
• D-Link: Advanced → QoS Engine

Method 3: Checking and resetting MTU (Maximum Transmission Unit)

MTU — is the maximum size of a data packet that can be transmitted without fragmentation. If the value MTU If set incorrectly (for example, too high for your ISP), this may result in packet loss and speed drops.

Optimal value MTU for most providers - 1500, but sometimes it is necessary to reduce it to 1472 or 1400 (for example, for PPPoE-connections). How to check and change:

1. Open Command line on Windows (Win + R → cmd).
2. Enter the command to check the current MTU:

   ping -f -l 1472 ya.ru

   If the packets are not fragmented (message "Packets need to be fragmented, but the prohibit flag is set." does not appear), the value is appropriate.

3. If the test fails, decrease the number 1472 by 8-10 units until the ping becomes stable.
4. Set the found value in the router settings (usually in the section WAN or Internet).

Example for TP-Link:

1. Go to Network → WAN.
2. Find the field MTU Size and set the optimal value (for example, 1472).
3. Save the settings and reboot the router.

⚠️ Attention: Incorrect value MTU This may cause connection interruptions or the inability to open some websites. If the internet connection is lost after making these changes, please revert to the previous value. 1500 and contact your provider for recommendations.

Method 4: Update firmware and reset to factory settings

Outdated router firmware may contain bugs that artificially limit speed. For example, in older versions of software for ASUS RT-N66U There was a bug that caused the router to cut speeds to 50 Mbps, regardless of the plan. A firmware update often solves the problem.

How to update firmware:

1. Download the latest firmware version from official website of the manufacturer (do not use third-party sources!).
2. Open the router's web interface and find the section Firmware Upgrade (usually in Administration or System Tools).
3. Upload the downloaded file and wait for the process to complete (do not turn off the router!).
4. After updating, please do the following: factory reset (button Reset on the back panel of the router).

If the update didn't help, try alternative firmware like DD-WRT or OpenWRTThese firmwares provide more control over the settings, but require technical knowledge. For example, in DD-WRT can be configured manually QoS or disable all restrictions through Telnet.

Method 5: Advanced Methods (Telnet, DD-WRT, disabling hardware limits)

If standard methods don't help, you'll have to use advanced toolsThese methods are suitable for advanced users and may void your warranty.

1. Disabling restrictions via Telnet

Some routers (eg. D-Link DIR-300 or Tenda) have hidden settings that can be changed through TelnetTo do this:

1. Turn on Telnet on the router (instructions vary by model; sometimes you may need to enable debugging in the web interface first).
2. Connect to the router via Telnet (for example, using PuTTY).
3. Enter commands to disable restrictions. Example for D-Link:

   nvram set qos_enable=0
   nvram set bw_enable=0
   nvram commit
   reboot

2. Installing DD-WRT/OpenWRT

Alternative firmware gives you full control over your router. For example, in DD-WRT Can:

• 🔧 Disable all built-in restrictions via Services → QoS.
• 📈 Set up Overclocking (overclocking the router processor) to increase performance.
• 🔗 Change settings TX Power (transmission power) to boost Wi-Fi signal.

Warning: Not all routers support alternative firmware. Check compatibility on the website before installing. DD-WRT or OpenWRT.

3. Bypassing hardware limitations

Cheap routers (for example, on a chipset Realtek RTL8186) have hardware limitations that cannot be bypassed using software. In such cases, the only solution is to replace the router with a model with a more powerful processor (for example, ASUS RT-AX86U or TP-Link Archer AX6000).

⚠️ Attention: Usage Telnet or alternative firmware may violate the manufacturer's warranty. Furthermore, incorrect commands in Telnet They can brick a router. If you're unsure, consult a specialist.

What should I do if there is a restriction from my provider?

If you've checked all your router settings, but your speed is still below your plan's speed limit, the problem may be with your ISP. Here's what you can do:

• 📄 Check the contract: Some providers indicate “up to 100 Mbit/s” in their tariff, which in practice means 50–70 Mbit/s.
• 📞 Call support: ask if it applies FUP (restriction after exceeding the traffic limit) or Throttling (artificial slowdown of certain types of traffic).
• 🔄 Change the connection type: if you have PPPoE, try switching to DHCP or Static IP (sometimes this increases the speed).
• 🛡️ Use a VPN: Some providers slow down torrents or videos—a VPN can bypass these restrictions.

If your provider refuses to lift the restrictions, consider switching providers. For example, Rostelecom And MTS often blocked P2P-traffic, whereas Beeline or local providers may offer unlimited tariffs.

🔄 Provider interfaces and tariffs change over time. Please check the current restrictions in your personal account or with a support operator.

FAQ: Frequently asked questions about router speed limits

nvram set clkfreq=600,300
nvram commit
reboot