How to remove Wi-Fi speed limits: from router to provider

Have you noticed that your Wi-Fi is slower than it should be? Your cable speed is consistently high, but your wireless speed is significantly lower than your provider's advertised speed? The cause could lie in both your router settings and your internet service provider's policies. In 80% of cases, speed throttling isn't a technical issue, but an artificial limitation that can be resolved without replacing your equipment.

In this article we will look at all possible sources of “brakes”: from improperly configured QoS on your router, up to your provider's hidden limits. You'll learn how to check your actual speed (not what your phone test shows!), which settings in your router's admin panel affect your throughput, and what to do if your provider is deliberately throttling your traffic. We'll cover this in detail. "smart" restrictions modern routers that automatically reduce speed for some devices.

Important: If your plan is initially limited (for example, "up to 100 Mbps"), you won't be able to exceed this limit—you'll need to upgrade your plan. However, if your Wi-Fi speed is slower than your cable connection, or drops at certain times of day, this is a sign to take action.

1. Checking real speed: why tests lie

Before you set up anything, you need to understand, where exactly is the speed lost?Most users make a critical mistake: they check the speed on their smartphone or laptop using popular services like SpeedtestBut such tests show speed between your device and the server, and not the actual network throughput.

To get accurate data, do the following:

• 📊 Cable test: Connect your computer directly to the router via LAN port and run a speed test. This is your "benchmark."
• 📶 Wi-Fi test on the same deviceDisconnect the cable and repeat the test. If the difference is more than 20%, the problem is with the wireless network.
• 🕒 Test at different timesProviders often limit speeds during peak hours (evenings). Test your speeds in the morning and evening.
• 🔄 Test on different devicesIf the speed is low on one gadget and normal on another, the device is to blame, not the network.

A critical point: modern smartphones (especially iPhone and flagships Samsung) artificially limit Wi-Fi speed to save battery life. To get accurate data, disable power saving mode and repeat the test.

2. Router settings: where the slowdowns are hidden

Most routers are configured by default in "universal" mode, which is suitable for the office but not for the home. The main parameters that affect speed are:

2.1. Wi-Fi operating mode (802.11n/ac/ax)

If your router supports Wi-Fi 6 (802.11ax), but it works in mode 802.11n, you lose up to 70% speed. How to check:

1. Log into your router's admin panel (usually at 192.168.0.1 or 192.168.1.1).
2. Go to the section Wi-Fi → Wireless Network Settings (the name may differ).
3. Find the parameter Network standard or Wireless Mode.
4. Install 802.11ac/ax (if devices support it). For older devices, select mixed mode. 802.11n/ac.

2.2. Channel Width

By default, many routers use channel width 20 MHz, although modern standards allow 40 MHz, 80 MHz or even 160 MHzThe wider the channel, the higher the speed, but the less stable it is. The optimal balance:

• 🏠 For an apartment: 80 MHz (if the router supports it).
• 🏢 For an office with multiple networks: 40 MHz (less interference).
• 📡 For 5 GHz: Always 80 MHz or 160 MHz.

Set 802.11ac/ax standard|

Select channel width 80 MHz (5 GHz) or 40 MHz (2.4 GHz)|

Disable power saving mode on devices|

Enable WPA3 (if supported)|

Change the channel to the least loaded one-->

2.3. QoS (Quality of Service) - a hidden limiter

Function QoS is designed to prioritize traffic (for example, so that calls Zoom (They didn't slow down because of downloading torrents). But it often works against you:

• 🎮 Game mode: may limit speed for all devices except set-top box/PC.
• 📥 Download priority: torrents "eat up" the entire channel, leaving crumbs for other devices.
• 📞 VoIP Priority: Skype calls block other types of traffic.

Recommendation: Disable QoS completely (Settings → QoS → Disable) and check the speed. If it improves, adjust the rules manually.

How to check if QoS is enabled on your router?

Open the router admin panel (192.168.0.1 or 192.168.1.1).

Go to the "QoS" or "Traffic Management" section (may be called "Bandwidth Control").

If there is a check mark "Enable QoS" or a slider "Enable", the function is active.

On ASUS routers, QoS is often hidden in "Adaptive QoS", on TP-Link - in "Advanced settings".

3. Provider restrictions: how to bypass them

If your speed hasn't improved after configuring your router, the problem may be with your internet service provider. Internet providers use several methods to limit your speed:

3.1. Throttling

This is a targeted speed reduction for certain types of traffic (torrents, 4K video, online games). How to check:

1. Run a speed test on Speedtest.
2. Download a large file via torrent or from a website (for example, an image Ubuntu).
3. Compare the download speed: if it is 2-5 times lower than in the test, you are being throttled.

3.2. Time or traffic limits

Some tariffs have hidden restrictions:

• ⏰ Nighttime restriction: from 8:00 pm to 8:00 am the speed drops due to network congestion.
• 📉 Traffic limit: after downloading, for example, 500 GB per month, the speed decreases.
• 🔄 Dynamic tariff: speed depends on network congestion in your area.

A critical point: if your provider's contract states "up to 100 Mbps," that doesn't guarantee stable speed. By law, providers are required to provide at least 10% of the advertised speed during peak hours.

3.3. How to bypass provider restrictions

There are several working methods:

• 🔒 VPN: some VPN services (eg. NordVPN or ProtonVPN) encrypt traffic, and the provider cannot determine the type of data to throttle. Disadvantage: may increase ping.
• 🔄 Changing DNS: use 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google) Sometimes this speeds up website loading.
• 📡 Connection via 4G/5GIf you have unlimited mobile internet, you can share it instead of Wi-Fi.

4. Hardware limitations: router, devices, interference

Even ideal settings won't help if your hardware isn't physically capable of delivering high speeds. Let's look at the main bottlenecks:

4.1. Router power

If your router is older than 5 years, it most likely does not support modern standards:

• 📡 Wi-Fi 4 (802.11n): maximum 600 Mbit/s (in reality – 200–300 Mbit/s).
• 🚀 Wi-Fi 5 (802.11ac): up to 3.5 Gbit/s (in reality – 500–800 Mbit/s).
• ⚡ Wi-Fi 6 (802.11ax): up to 10 Gbit/s (in reality – 1–2 Gbit/s).

Solution: If your plan is over 300 Mbps and your router is older than 2018, it's time to consider a replacement. The best models for 2026 are: ASUS RT-AX88U, TP-Link Archer AX6000, Keenetic Ultra.

4.2. Frequency range: 2.4 GHz vs. 5 GHz

Range 2.4 GHz longer range, but overloaded (especially in apartment buildings). 5 GHz Faster, but less effective at penetrating walls. How to choose:

Recommendation: If your router supports MU-MIMO And Beamforming, enable these features in settings. They increase speed for multiple devices simultaneously.

4.3. Interference from neighbors and household appliances

Few people know, but Wi-Fi speed is affected by:

• 🍳 Microwave ovens (operate at a frequency of 2.4 GHz).
• 📱 DECT cordless phones.
• 🔌 Smart sockets and light bulbs (especially cheap Chinese ones).
• 🚪 Mirrors and metal doors (reflect the signal).

Solution: Use apps like Wi-Fi Analyzer (Android) or NetSpot (Windows/macOS) to search for a free channel. If your network is experiencing a lot of interference, switch to 5 GHz or buy Mesh system (For example, TP-Link Deco).

5. Software limitations on devices

Sometimes the problem isn't with the network, but with the device itself. Let's look at some typical cases:

5.1. Windows Limitations

Windows 10 and 11 limit Wi-Fi speed by default to save power. How to disable:

1. Open Control Panel → Power Options.
2. Select your active plan and click Setting up a power plan.
3. Go to Change advanced power settings.
4. Find the section Wireless Network Adapter Settings → Power Saving Mode.
5. Install Maximum performance for both states (battery and mains).

5.2. Limits on Android and iOS

Mobile operating systems aggressively conserve battery power, sacrificing speed. What to do:

• 📱 Android: turn off Adaptive battery saving in the battery settings. For Samsung also turn it off Wi-Fi optimization V Settings → Connections → Wi-Fi → Advanced.
• 🍎 iOS: turn on Low power mode (strange, but sometimes it helps). Also check if it is turned on Mobile data limit for your Wi-Fi network.

5.3. Antiviruses and firewalls

Programs like Kaspersky, Avast or ESET They may block some traffic, considering it "suspicious." How to check:

1. Disable your antivirus for 5 minutes.
2. Run a speed test.
3. If the speed has increased, add your browser/game to the firewall exceptions.

6. Alternative ways to speed up Wi-Fi

If standard methods don't help, try these less obvious tricks:

6.1 Changing MTU

MTU (Maximum Transmission Unit) — the maximum data packet size. If the value is too large, packets are truncated, slowing the connection. Optimal value for Wi-Fi: 1472.

How to change (using Windows as an example):

netsh interface ipv4 show subinterfaces
netsh interface ipv4 set subinterface"interface_ID" mtu=1472 store=persistent

Where Interface ID — your Wi-Fi connection number (you can find it in the first command).

6.2. Disabling IPv6

If your provider does not support IPv6, but it's enabled on the router, which can cause delays. Disable it in the router settings (LAN → IPv6 → Disable) and on devices.

6.3 Using Powerline Adapters

If Wi-Fi reception is poor in another room, instead of a repeater (which reduces the speed by 2 times) use Powerline adapters (For example, TP-Link TL-PA7010P). They transmit the Internet through electrical wiring at speeds of up to 1 Gbit/s.

6.4. Resetting the router to factory settings

If you have tried everything and the speed is still low, reset the router to factory settings (button Reset on the back panel). Then set it up again following the instructions in this article.

7. When to contact your provider

If, after all these steps, the Wi-Fi speed remains below 50% of the cable speed, the problem may be with your ISP. Signs that it's time to call support include:

• ⚡ The speed drops strictly at a certain time (for example, from 19:00 to 23:00).
• 📉 Tests show normal speed, but files download very slowly.
• 🔄 After rebooting the router, the speed is temporarily restored, but then drops again.
• 📡 Neighbors with the same provider are complaining about similar problems.

What to tell your provider:

1. "I have a XXX plan with a advertised speed of YYY Mbps. Cable speed is ZZZ Mbps, and Wi-Fi is AAA Mbps. Please check your line for congestion or artificial throttling."
2. "I ran tests at different times of day (I'll attach screenshots). The speed doesn't match the contract."
3. "Please provide data on the actual channel load on your side."

If the provider refuses to resolve the issue, file a formal complaint demanding a recalculation of the fee for services not rendered (under Article 29 of the Law "On the Protection of Consumer Rights").

FAQ: Frequently Asked Questions about Wi-Fi Speed

Why is Wi-Fi speed slower than cable?

This is normal: a wireless network is always slower than a wired one due to interference, Wi-Fi standard limitations, and data loss. A difference of 10–30% is considered acceptable. If the gap is larger, look for the problem in your router or device settings.

Is it possible to increase Wi-Fi speed beyond the provider's tariff?

No. The maximum speed is limited by your plan. For example, if you have a plan with "up to 100 Mbps," even with the most modern router you won't get 200 Mbps. However, you can get closer to the maximum by optimizing your settings.

Is it true that dual-band routers (2.4 + 5 GHz) are faster?

Yes, but not always. The 5 GHz band is faster, but has poorer penetration through walls. The optimal solution is to use both bands: 2.4 GHz for devices in remote rooms and 5 GHz for devices near the router.

Why does the speed drop at night?

This is due to network congestion on the provider's network. In the evening (7:00 PM to 11:00 PM), many users watch videos, play online games, and download files, which limits the bandwidth available. Solution: complain to your provider or upgrade to a more expensive plan with guaranteed speed.

Can a computer virus affect Wi-Fi speed?

Yes, some viruses (eg. botnets or miners) are using your internet to send spam or mine cryptocurrency. Check your computer with an antivirus (for example, Malwarebytes) and see which programs consume traffic in Task Manager (Network tab).