How to increase Wi-Fi speed on a laptop: from simple settings to complex tricks

Slow Wi-Fi on a laptop is a problem that almost every user faces. Pages take forever to load, videos are constantly stuck on buffering, and online games lag at the most crucial moments. There can be dozens of reasons: from the banal distance to the router to hidden operating system settings that “strangle” the speed. But the good news is that in 90% of cases the situation can be corrected without purchasing new equipment.

In this article we will look at all possible ways to speed up Wi-Fi - from elementary (which will take 2 minutes) to advanced (require in-depth knowledge). You will learn how to check the real connection speed, what settings Windows 10/11 slow down the connection, how to update adapter drivers without errors, and why even the placement of the laptop on the table affects the stability of the signal. And at the end - answers to frequently asked questions and a table comparing methods by effectiveness.

1. Diagnosis of the problem: why is Wi-Fi slow?

Before you fix anything, you need to understand where exactly is the bottleneck?. Slow Wi-Fi may be due to:

• 📶 Router — outdated firmware, incorrect channel settings, device overload.
• 💻 Laptop - outdated adapter drivers, energy saving restrictions, viruses.
• 🌐 Provider — problems on the side of the Internet provider, speed limit according to the tariff.
• 📡 External interference — neighboring networks on the same channel, thick walls, microwaves.

First step - measure real speed. To do this:

1. Connect the laptop to the router via cable (if possible) and check the speed for Speedtest.net.
2. Disconnect the cable and repeat the Wi-Fi test.
3. Compare the results: if the cable speed is high, but the Wi-Fi speed is low, the problem is in the wireless connection.

If the cable speed is also low, the provider or tariff is to blame. Call support and find out if there are any restrictions. If the problem is only in Wi-Fi, read on.

2. Optimizing router settings

The router is the heart of the home network, and its settings directly affect the speed. Even if you've never gone into Control Panel, a few changes may increase speed by 30–50%.

First enter the router settings. To do this:

1. Open your browser and enter in the address bar 192.168.0.1 or 192.168.1.1 (the exact address is indicated on the router sticker).
2. Enter your username and password (usually admin/admin or admin/password).
3. Go to section Wireless (Wireless network) or Wi-Fi Settings.

Now let's start optimizing:

• 🔄 Change Wi-Fi channel. By default, the router selects the channel automatically, but this often leads to interference from neighbors. Manually set the channel 1, 6 or 11 (for the 2.4 GHz band) - they are the least loaded. For 5 GHz select channels 36–48 or 149–165.
• 📡 Enable 802.11n/ac/ax mode. In your wireless network settings, find the option Wireless Mode and install 802.11n/ac (for older devices) or 802.11ax (Wi-Fi 6), if the router supports it.
• 🔒 Disable WPS. This feature is vulnerable to hacking and can slow down your network. Find the option WPS and deactivate it.
• 📶 Reduce channel width. If you have a lot of interference, try setting the channel width 20 MHz instead of 40 MHz (in section Channel Width). This will reduce the top speed but increase stability.

How do you know which channels are busy?

Open the app on your phone Wi-Fi Analyzer (Android) or NetSpot (iOS/Windows). It will show how busy the channels are and help you choose the freest one.

Don't forget to save your settings (Save or Apply) and reboot the router. If after the changes the speed drops, return to the previous settings.

3. Setting up a Wi-Fi adapter in Windows

Windows 10 And Windows 11 by default are optimized for power saving rather than maximum Wi-Fi speed. This means that the system may artificially limit the adapter's bandwidth to save battery power. You can fix this manually.

Open Device Manager (click Win + X → Device Manager) and find the section Network adapters. Your Wi-Fi module should be there (for example, Intel Wi-Fi 6 AX200, Qualcomm Atheros or Realtek RTL8821CE). Right click on it and select Properties.

Go to the tab Power management And uncheck from point Allow this device to turn off to save power. Then open the tab Additionally and find the following parameters (names may vary depending on the adapter model):

• 🔋 Roaming Aggressiveness - set the value 1. Lowest (minimal reconnection).
• 📡 Transmit Power — select Highest (maximum transmit power).
• 🔄 802.11n/ac Wireless Mode — enable (if there is such an option).
• 🛡️ U-APSD Support — disable (may cause delays).

After applying the settings, restart your laptop. If in Device Manager There is an exclamation mark next to the adapter name, which means the driver is not working correctly (more on this in the next section).

4. Update and reinstall drivers

Outdated or damaged drivers are one of the most common causes of slow Wi-Fi. Manufacturers regularly release updates to fix bugs and improve compatibility with new standards (for example, Wi-Fi 6).

There are three ways to update the driver:

1. Via Device Manager:
   1. Open Device Manager → Network adapters.
   2. Right click on the Wi-Fi adapter → Update driver → Automatic search.
2. From the manufacturer's website:
   1. Find out the adapter model (in Device Manager or through the command wmic nic get name, manufacturer in CMD).
   2. Download the latest driver from the official website (Intel, Qualcomm, Realtek etc.).
   3. Remove the old driver via Programs and components and install a new one.
3. Through specialized utilities:
   1. Programs like Driver Booster or Snappy Driver Installer can automatically find and update drivers.
   2. But be careful: some utilities install unnecessary software.

If the speed does not increase after the update, try roll back the driver to the previous version (tab Driver → Rollback). Sometimes new versions contain bugs.

For advanced users: if you are confident in your actions, you can try install a driver from a different adapter model (for example, from Intel AX201 instead of AX200). This sometimes gives an increase in speed, but is fraught with unstable operation.

5. Optimize Windows settings for maximum speed

Windows by default limits network bandwidth for background tasks (such as updates). These restrictions can be removed.

Open Options (Win + I) → Network and Internet → Wi-Fi → Managing known networks. Select your network and click Properties. Here:

• 🔄 Set the switch Connect automatically when entering range to position On.
• 📡 In the section IP Settings select Manually and install DNS servers 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google). This will speed up the opening of sites.

Next, open Control panel → Network and Internet → Network Sharing Center → Changing adapter settings. Right click on your Wi-Fi connection → Properties → Customize → Additionally. Here:

• 🔋 Find the parameter Energy Efficient Ethernet and turn it off.
• 📦 Install Jumbo Packet in meaning Disabled (if any).
• 🔄 Turn it on Flow Control (flow control) and Green Ethernet (if available).

For Windows 10/11 it's also useful to disable bandwidth reservation limitation. To do this:

1. Click Win + R, enter gpedit.msc and press Enter.
2. Follow the path: Computer Configuration → Administrative Templates → Network → QoS Packet Scheduler.
3. Find the parameter Limit reserved bandwidth and set the value 0%.

What to do if there is no gpedit.msc?

Home editions of Windows (Home) do not have a Group Policy Editor. Instead, open the registry (regedit) and create a parameter NonBestEffortLimit (DWORD) with value 0 in the thread HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched.

6. Hardware solutions: from antennas to USB adapters

If software methods do not help, the problem may be hardware. Here's what you can do:

1. Check the router's antennas. If your router has detachable antennas, try:

• 🔄 Rearrange them at an angle of 45° or 90° to each other (this changes the directional pattern of the signal).
• 📡 Replace with more powerful ones (for example, antennas with amplification 5 dBi or 9 dBi).

2. Use a USB Wi-Fi adapter. The built-in adapters in laptops are often weak. Plug-in USB adapter (e.g. TP-Link Archer T4U or ASUS USB-AX56) can give a 2-3 times speed increase, especially if it supports Wi-Fi 6.

3. Set up MIMO and MU-MIMO. Modern routers support technologies MIMO (several antennas) and MU-MIMO (simultaneous work with several devices). Make sure that these functions are enabled in the router settings (section Wireless → Advanced).

4. Change the location of the router. Wi-Fi signals weaken as they pass through walls, furniture, and appliances. Optimal router position:

• 📍 In the center of the apartment (not in the corner).
• 📡 At a height of 1–1.5 meters from the floor.
• 🚫 Away from microwaves, radio phones and mirrors (they create interference).

Method	Difficulty	Potential speed increase	Costs
Changing the Wi-Fi channel	Low	10–30%	Free
Driver Update	Average	20–50%	Free
USB Wi-Fi adapter	Low	50–200%	1 000–3 000 ₽
Replacing router antennas	Average	20–40%	500–2 000 ₽
Transition to 5 GHz	Low	30–100%	Free

If none of the methods help, the problem may be with the router itself. Legacy models (especially those with only support Wi-Fi 4, that is 802.11n) are physically unable to provide high speed. In this case, you should consider purchasing a new router with support Wi-Fi 6 (For example, ASUS RT-AX88U or TP-Link Archer AX6000).

7. Advanced Tricks: Disabling BGN, QoS and IPv6

These methods require more in-depth knowledge, but can provide a noticeable increase in speed in specific cases.

1. Disable 802.11b/g/n compatibility mode. Old standards (802.11b And 802.11g) slow down the network, even if modern devices are connected to it. In the router settings, find the option Wireless Mode or Legacy Mode and install 802.11n/ac/ax only.

2. Setting up QoS (Quality of Service). This feature prioritizes traffic (for example, for games or video calls), but sometimes does not work properly. In the router settings (QoS or Traffic Control) disable it or configure it manually, specifying the laptop's MAC address as a priority.

3. Disable IPv6. If your ISP does not support IPv6, this protocol may create unnecessary overhead. Disable it in connection properties:

1. Open Control Panel → Network and Internet → Network and Sharing Center → Change adapter settings.
2. Right click on Wi-Fi → Properties.
3. Uncheck IP version 6 (TCP/IPv6).

4. Change MTU. If data packets become fragmented, speeds drop. Optimal value MTU for most networks - 1472. To change it:

netsh interface ipv4 set subinterface "Имя_подключения" mtu=1472 store=persistent

You can find out the current connection name using the command ipconfig in CMD.

8. Alternative solutions: Mesh systems, repeaters and Powerline

If all of the above methods fail, the problem may be poor Wi-Fi coverage in your home. In this case, the following will help:

1. Mesh systems (for example, TP-Link Deco or Google Nest Wi-Fi). This is a set of several access points that create a single network without reconnections. Ideal for large apartments or houses with thick walls.

2. Wi-Fi repeaters (repeaters). Devices like Xiaomi Wi-Fi Repeater 2 or TP-Link RE605X enhance the signal in “dead zones”. However, they can reduce the speed by 30-50%, since they use one channel for reception and transmission.

3. Powerline adapters. Technology Powerline transmits an Internet signal through electrical wiring. For example, TP-Link AV1000 allows you to connect your laptop to the router via an outlet, providing speeds up to 500–1000 Mbit/s (depending on the quality of the wiring).

4. Switch to a wired connection. If the laptop is located next to the router, the most reliable way is to connect it via cable (Ethernet). Even an inexpensive cable Cat 5e will provide speed up to 1 Gbit/s without delay.

💡

Mesh systems are more expensive than repeaters, but provide more stable coverage. Repeaters are cheaper, but can create additional interference.

If you live in an apartment building with many neighbors with Wi-Fi, consider upgrading to 5 GHz. This band is less congested but has a shorter range. In the router settings, enable 5 GHz and connect to this network on your laptop.

FAQ: Answers to frequently asked questions

🔍 Why is Wi-Fi speed on a laptop lower than on a phone?

This may be due to:

• Different Wi-Fi adapters (phones often have more modern modules).
• Windows power saving limitations (see section 3).
• Outdated drivers on the laptop.

Try updating your drivers and disabling power saving for the adapter.

📶 Which Wi-Fi channel is the fastest?

There is no universal “fastest” channel - it all depends on how busy the airwaves are. In range 2.4 GHz channels are usually free 1, 6 And 11. B 5 GHz choose channels 36–48 or 149–165 (if they are supported by your router).

Use the app Wi-Fi Analyzerto see the channel load in your home.

⚡ Can an antivirus slow down Wi-Fi?

Yes, some antiviruses (for example, Kaspersky, Avast) scan network traffic, which can reduce speed. Try temporarily disabling your antivirus or adding a browser/game exception.

Also check to see if Windows Firewall is blocking connections to certain sites or servers.

💻 Why does the speed drop when running on battery power?

Windows automatically limits the performance of the Wi-Fi adapter when running on battery power. To fix this:

1. Open Control Panel → Power Options.
2. Select a scheme High performance.
3. Click Set up power plan → Change advanced power settings.
4. Find Wireless adapter settings → Power saving mode and install Maximum performance.

🔄 What to do if Wi-Fi keeps disconnecting?

The reasons may be different:

• Problems with the driver (reinstall it).
• The router is faulty (reboot it).
• Interference from other devices (change channel).
• MAC address restrictions in the router settings (check the white list).

If the problem persists, try connecting to another Wi-Fi (for example, from your phone in access point mode). If outages continue there, the laptop adapter is to blame.