How to Increase Wi-Fi Speed ​​on Your Computer: A Step-by-Step Guide

Slow Wi-Fi on a computer is a problem faced by every second user. Even with a stable ISP plan, wireless speeds can drop 2-5 times compared to a cable connection. The causes lie in router settings, adapter drivers, interference from neighbors, or operating system limitations.

In this article we will look at 12 proven methods Increase your PC's Wi-Fi speed without buying new hardware. You'll learn how to choose the optimal channel, configure QoS on the router, update the adapter drivers, and even manually limit background processes that "steal" traffic. All methods have been tested on Windows 10/11 and are relevant for routers TP-Link, ASUS, Keenetic and other popular brands.

Important: If the speed drops on only one device, the problem is most likely with your computer settings. If the entire Wi-Fi network is slow, the router or external interference is to blame. Let's start with diagnostics!

1. Check your actual speed and compare it with your tariff

Before you configure anything, make sure the problem is truly Wi-Fi-related and not your ISP plan. Connect your computer to the router. via cable and measure the speed on Speedtest or FAST.comIf the readings are close to those stated in the contract, the problem is with the wireless network.

If the cable speed is also low:

  • 📞 Call your provider - there may be a line outage or a limit has been activated (applicable to tariffs with a FUP).
  • 🔌 Reboot your router (pull the plug for 30 seconds) - this sometimes helps when the equipment freezes.
  • 🛠️ Check the cable from the provider for damage (kinks, bites from animals).

If the speed is normal via cable, but drops via Wi-Fi, proceed to the next steps. To be objective, do 3–5 measurements in different parts of the apartment and record the results. This will help you evaluate the effectiveness of the changes after the adjustment.

📊 What kind of router do you have?
TP-Link
ASUS
Keenetic
Xiaomi
D-Link
Zyxel
Another

2. Optimize the channel and bandwidth on your router

The most common reason for slow Wi-Fi is channel congestionIn apartment buildings, neighbors often use the same frequencies, creating interference. By default, the router selects a channel automatically, but this isn't always optimal.

How to check and change the channel:

  1. Open the router's web interface (usually at 192.168.0.1 or 192.168.1.1, login/password - on the sticker on the back).
  2. Go to the section Wireless network (Wi-Fi) → Settings (the name may differ).
  3. Find the parameters Channel And Channel Width.

Recommendations for setting up:

  • 📶 For 2.4 GHz select channels 1, 6 or 11 — they don't intersect. Avoid automatic mode.
  • 🔄 For 5 GHz use channels 36–48 or 149–165 (allowed in Russia).
  • 📊 Set the channel width 20 MHz For 2.4 GHz (will increase stability) and 40–80 MHz For 5 GHz (will increase speed).

To accurately determine a free channel, use utilities like Wi-Fi Analyzer (Android) or inSSIDer (Windows) They will show the airtime congestion in your area.

How to find out the IP address of a router?

If standard 192.168.0.1 or 192.168.1.1 don't work, open command prompt (Win + R → cmd) and enter 

ipconfig
Look for the line "Default gateway" - this is your router's IP.

⚠️ Attention: Tuning channels on a frequency 5 GHz Depends on the country's legislation. In Russia, channels 36–64 and 149–165 are permitted. Using other channels may violate the law.

3. Update your Wi-Fi adapter drivers

Outdated or faulty drivers are the second most common cause of slow Wi-Fi. This is especially true for laptops with adapters. Intel, Realtek or BroadcomWindows often installs basic drivers that do not support modern standards (Wi-Fi 6, 802.11ax).

How to update the driver:

  1. Click Win + X → device Manager.
  2. Expand the branch Network adapters.
  3. Find your Wi-Fi adapter (e.g. Intel Wi-Fi 6 AX200 or Realtek RTL8821CE).
  4. Right click → Update driver → Search for drivers on this computer.
  5. Select Select a driver from the list... and install the latest version.

If Windows does not find updates:

  • 🔍 Download the driver from official website of the manufacturer (do not use third-party resources!).
  • 💾 For laptops HP, Lenovo, Dell Look for drivers on the brand's website (not Intel/Realtek!).
  • 🔄 After installation reboot computer.

For adapters Intel additionally install the utility Intel PROSet/Wireless Software - it optimizes Wi-Fi operation at the software level.

Download the driver from the official website of the adapter manufacturer|

Remove the old driver via Device Manager|

Install the new driver and restart your PC|

Check the speed after the update-->

4. Adjust the Wi-Fi adapter's power settings

By default, Windows limits Wi-Fi adapter power consumption, especially on laptops. This saves battery life but reduces connection speed and stability. To remove the limit:

  1. Open device Manager (Win + X).
  2. Find your Wi-Fi adapter in the section Network adapters.
  3. Right click → Properties → tab Power management.
  4. Uncheck the box Allow the computer to turn off this device to save power.

For maximum performance:

  • 🔌 Connect your laptop to a power outlet (Windows may artificially limit the speed when on battery).
  • ⚡ In Control Panel → Power Options select a scheme High performance.
  • 🔄 In the adapter settings (Properties → Advanced) set for the parameter 802.11n/ac Wireless Mode meaning "On".

Some Realtek and Broadcom adapters have a hidden "Transmit Power" setting. Set it to 100% to increase range and speed.

5. Disable background programs that steal traffic

Many applications consume the Internet in the background: cloud storage (Google Drive, Dropbox), messengers (Telegram, Discord), games (Steam, Epic Games) and even Windows UpdateThey can "eat up" up to 30-50% of the channel, leaving you with crumbs.

How to find and disable traffic hogs:

  1. Open Task Manager (Ctrl + Shift + Esc).
  2. Go to the tab Performance → Ethernet/Wi-Fi.
  3. See which programs are actively using the network.
  4. Close unnecessary processes or limit them in settings.

List of the most power-hungry apps:

Application Traffic consumption How to limit
Windows Update Up to 100–300 MB/h Disable in Settings → Update & Security → Advanced options
Steam, Epic Games Up to 500 MB/h (game updates) Limit download speed in client settings
Google Chrome, Firefox Up to 200 MB/h (tabs, extensions) Close unnecessary tabs, disable extensions
OneDrive, Google Drive Up to 1 GB/h (file synchronization) Pause sync in tray

For full control, use the built-in Windows traffic monitor:

  • 📊 Go to Settings → Network & Internet → Data usage.
  • 🔍 View app statistics for the last 30 days.
  • ⚠️ Set a traffic limit so that Windows warns you when it's exceeded.
⚠️ Attention: Some antiviruses (Kaspersky, ESET NOD32) scan traffic in real time, which can reduce speed by 10–20%. Try temporarily disabling network protection in your antivirus settings.

6. Change the Wi-Fi standard and adapter operating mode

Modern routers support several Wi-Fi standards: 802.11n (Wi-Fi 4), 802.11ac (Wi-Fi 5) and 802.11ax (Wi-Fi 6). If your adapter and router support Wi-Fi 5/6, but the connection is made using an outdated protocol, the speed will be lower.

How to check and change the standard:

  1. On the router:
    • Go to Wi-Fi settings.
    • Find the parameter Wireless Mode.
    • Install «802.11ac» or «802.11ax» (if supported).
  • On the computer:
    • Open Device Manager → Network Adapters → Properties of your adapter → Advanced.
    • Find the parameter Wireless Mode or 802.11n/ac Wireless Mode.
    • Set the maximum supported mode (eg. «802.11ac»).

      • If your adapter does not support Wi-Fi 5/6, but the router - yes, it makes sense to buy an external USB adapter (for example, TP-Link Archer T4U or ASUS USB-AC68>) for 1,500–3,000 ₽. This is cheaper than buying a new router.

      Also check the parameter Roaming Aggressiveness (roaming aggressiveness) in the adapter settings. Set the value «1. Lowest» for a stable connection or "5. Highest" for quick switching between points (relevant for mesh systems).

      7. Optimize QoS settings on your router

      QoS (Quality of Service) — a function that prioritizes traffic. For example, you can give maximum speed for video calls (Zoom, Skype) or games (CS2, Valorant), while limiting downloads via torrents.

      How to set up QoS:

      1. Log into your router's web interface.
      2. Find the section QoS or Traffic priority (the name depends on the model).
      3. Enable QoS and select the type:
        • 🎮 For games: priority for UDP packets (ports 27000–27050 for Steam).
        • 📹 For streaming: priority for YouTube, Twitch, Netflix.
        • 💼 For work: priority for Zoom, Teams, Discord.
    • Limit the speed for background traffic (torrents, updates).

    Example setup for gamers on a router ASUS:

    • 🎯 Turn on Adaptive QoS → select mode Games.
    • 🔧 In manual mode, add a priority for your PC's IP (you can find it through ipconfig).
    • ⚡ Set a download limit for other devices (e.g. 50 Mbps for smartphones).
    ⚠️ Attention: QoS settings may conflict with VPN and some instant messengers (for example, Telegram). If you experience connection problems after enabling QoS, try disabling it or adding exceptions.

    8. Check for physical interference and router location

    Even the best settings won't help if your Wi-Fi signal is blocked by walls, furniture, or appliances. 2.4 GHz do not pass well through:

    • 🧱 Concrete walls (signal reduction by 20–50%).
    • 🚪 Metal doors (shield the signal completely).
    • 🔌 Microwaves, cordless phones (work on the same frequency).
    • 💧 Aquariums, mirrors (reflect and scatter the signal).

    How to improve coverage:

    • 📡 Move the router to center of the apartment, raise it to a height of 1–1.5 m (for example, onto a cabinet).
    • 🔄 Deploy your router's antennas vertically (for covering several floors) or at an angle of 45° (for wide coverage in one plane).
    • 🛡️ Move the router away from household appliances (refrigerator, microwave, TV).
    • 🔌 If possible, use surge protector with interference protection.

    For larger apartments or houses, consider:

    • 📶 Mesh system (For example, TP-Link Deco or ASUS ZenWiFi) - several access points operating as one network.
    • 🔗 Wi-Fi repeater (repeater) - strengthens the signal in "dead zones".
    • 🔌 Powerline adapters — transmit the Internet through electrical wiring (useful if the router cannot be moved).

    Before purchasing additional equipment, check coverage using the app NetSpot (Windows/macOS) or WiFi SweetSpots (Android) They will show you a signal map of your home.

    FAQ: Frequently asked questions about Wi-Fi speed on a PC

    Why is Wi-Fi speed slower than cable?

    This is normal: wireless networks are always slower due to interference, standard limitations, and latency. Under ideal conditions, the difference is 10-20%, but in reality, it can be as much as 50%. To reduce the gap:

    • Use 5 GHz instead of 2.4 GHz.
    • Connect to the router at a distance of no more than 5 meters.
    • Update your adapter and router drivers.
    How do I know which Wi-Fi standard my adapter supports?

    Open Device Manager → Network Adapters, find your Wi-Fi module and check the model. Next:

    • If the title contains «AC» (For example, Intel Dual Band Wireless-AC 7260) - supported Wi-Fi 5 (802.11ac).
    • If there is «AX» (For example, Intel Wi-Fi 6 AX200) - supported Wi-Fi 6 (802.11ax).
    • If only «N» (For example, Realtek RTL8188EE) - only Wi-Fi 4 (802.11n).

    You can also check the specifications on the manufacturer's website.

    Does flashing the router to DD-WRT or OpenWRT help?

    Yes, but only if you're an experienced user. Custom firmware like DD-WRT or OpenWRT give:

    • ✅ More settings for optimization (for example, fine-tuning QoS).
    • ✅ Support for modern protocols on older routers.
    • ✅ Possibility to increase transmission power (up to legal limits!).

    However, there are risks:

    • ❌ Loss of warranty.
    • ❌ Possibility to brick the router in case of an error.
    • ❌ Not all models are supported.

    For beginners, it is better to get by with the standard firmware.

    Why does the speed drop in the evening?

    In the evening (from 6:00 pm to 11:00 pm) the Internet slows down due to:

    • 📈 Provider network congestion (many users online).
    • 📡 Interference from neighbors (everyone is on Wi-Fi, the channels are overloaded).
    • 🎮 Peak traffic (streaming, online games, downloads).

    What to do:

    • Switch to 5 GHz (there are fewer users).
    • Enable QoS on your router to prioritize your traffic.
    • Try alternative DNS (eg. 1.1.1.1 or 8.8.8.8).
    Can you increase Wi-Fi speed with a VPN?

    VPN does not increase Internet speed, on the other hand, typically decreases by 10-30% due to encryption. However, a VPN can help in two cases:

    • 🔒 If the provider slows down specific services (for example, torrents or Netflix).
    • 🌍 If you connect to servers in another country with a faster channel.

    To test, connect to a VPN server in your city (for example, via ProtonVPN or Windscribe) and compare the speed.

    • 📖 Read also

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