Slow Internet, constant connection dropouts or weak signal Wi-Fi on a laptop is a problem that almost every user faces. The reasons may lie in the settings of the device itself, as well as in the parameters of the router, interference from neighboring networks, or even physical obstacles. In this article we will look at all possible ways to improve Wi-Fi, from basic to advanced, taking into account the features of different laptop models (Asus, Lenovo, HP, Acer, Dell) and operating systems.

It is important to understand that there is no universal solution: if you have old laptop with 802.11n Wi-Fi adapter, then even ideal router settings will not give speeds above 300 Mbit/s. On the other hand, sometimes the problem is solved by simply changing the channel in the router or updating the drivers. We have structured the materials so that you can start with the simplest methods and gradually move on to more complex ones - without unnecessary technical details, but with clear instructions.

1. Check the current speed and diagnose the problem

Before you change anything, you need to understand where exactly is the bottleneck?. A weak signal and low speed can be caused by various reasons:

  • 📶 Low signal level (the laptop is far from the router or there are obstacles).
  • 🖥️ Problems with Wi-Fi adapter in a laptop (outdated drivers, hardware limitations).
  • 🌐 Router channel overload (many devices or interference from neighboring networks).
  • 🔌 Provider restrictions (tariff, problems on the line).

For diagnostics:

  1. Connect the laptop to the router via cable (if possible) and check the speed for Speedtest.net. If the cable speed is high, but the Wi-Fi speed is low, the problem is in the wireless connection.
  2. Check the signal level in the Windows tray (Wi-Fi icon). If there are 1-2 divisions, the coverage needs to be improved.
  3. Open Task Manager → Network Adapters and check if the Wi-Fi adapter is loaded at 100% (this may indicate driver problems).
📊 What laptop do you have?
  • Asus
  • Lenovo
  • HP
  • Acer
  • Dell
  • Apple MacBook
  • Other

If the cable speed is also low, contact your provider. If the problem is only Wi-Fi, continue to the following sections.

2. Optimize the location of the router and laptop

Distance and obstacles between the router and laptop reduce Wi-Fi speeds by 30–70% - this is a physical law. Even if the signal is “caught,” it may be weak for stable operation.

  • 📍 Place the router in the center of the apartment, not in the corner. Ideally - at a height of 1–1.5 meters (for example, on a shelf).
  • 🚫 Remove obstacles: Concrete/brick walls, metal cabinets, mirrors and aquariums greatly weaken the signal.
  • 📶 Point the router's antennas vertically (if the laptop and router are on the same floor) or at an angle of 45° (if on different floors).
  • 🔌 Do not place the router near household appliances (microwave, cordless phones, Bluetooth speakers).
Obstacle material Signal attenuation, dB Impact on speed
Drywall 3–5 Minor
Brick wall 10–15 Speed drops by 2–3 times
concrete wall 15–25 The signal may disappear
Metal door 20–30 The connection is lost
⚠️ Attention: If the router is in the hallway near the front door, and you are working in the back room, no settings will help - you need a signal repeater or a Mesh system.

3. Update or reinstall the Wi-Fi adapter drivers

Outdated or damaged drivers are one of the most common reasons for poor Wi-Fi performance. Manufacturers regularly release updates that fix compatibility issues and add support for new standards (for example, Wi-Fi 6).

How to update the driver:

  1. Click Win + X and select Device Manager.
  2. Expand the section Network adapters, find your Wi-Fi adapter (for example, Intel Wi-Fi 6 AX200 or Qualcomm Atheros QCA9377).
  3. Right click → Update driver → Automatic search.
  4. If there are no updates, download the driver from the laptop manufacturer’s website (section Support) or from the adapter manufacturer's website (Intel, Qualcomm, Broadcom).

Make sure the adapter is detected in Device Manager|

Update driver via Windows Update|

Download the latest version from the manufacturer's website|

Reboot the laptop after installation-->

If the problem persists after the update, try roll back the driver (in the same menu select Properties → Rollback) or remove it completely and then reinstall it.

⚠️ Attention: On laptops Dell And HP sometimes it helps to install the driver not from the official website, but from the chip manufacturer’s website (for example, for Intel Wi-Fi 6 — with intel.ru).

4. Configure your router for maximum performance

Many users do not go into the router settings for years, but in the meantime, there they can optimize the channel, signal strength, and even prioritize traffic for the laptop. Here are the key parameters:

  • 📡 Change Wi-Fi channel: If there are many networks nearby, they will cause interference. Use utilities like Wi-Fi Analyzer (Android) or NetSpot (Windows) to find the least crowded channel (for example, 6th or 11th in the 2.4 GHz band).
  • 🔄 Enable 802.11n/ac/ax mode (if supported): in the router settings, select the mode 802.11ac or Wi-Fi 5/6 instead of 802.11b/g.
  • 🔋 Increase transmission power: in some routers (for example, Asus, TP-Link) there is an option Transmit Power - install it on High or 100%.
  • 🔒 Disable Wi-Fi Power Saver: in routers Xiaomi And Keenetic there is a function Green AP or Energy saving — it needs to be turned off.

How to enter the router settings:

  1. Open your browser and enter in the address bar 192.168.0.1 or 192.168.1.1 (the address is indicated on the router sticker).
  2. Enter your login/password (usually admin/admin or admin/empty password).
  3. Go to section Wireless or Wireless network.
💡

If you have a dual-band router, connect your laptop to a 5 GHz network (it's less congested and faster) rather than a 2.4 GHz one. The 5 GHz network name usually ends with _5G or -5.

5. Use an external Wi-Fi adapter or signal repeater

If the laptop's built-in Wi-Fi adapter is weak (especially in older models), it can be replaced or supplemented with an external device. Here are the options:

  • 🖧 USB Wi-Fi adapter: connects to a USB port, supports modern standards (for example, TP-Link Archer T4U with Wi-Fi 5 or ASUS USB-AX56 with Wi-Fi 6). The speed will increase by 2–3 times.
  • 📶 Wi-Fi repeater (repeater): Strengthens the router signal. Suitable if the laptop is far from the router (for example, Xiaomi Wi-Fi Repeater 2 or TP-Link RE605X).
  • 🌐 Mesh system: multiple access points that create a single network (for example, Google Nest Wi-Fi or ASUS ZenWiFi). Ideal for large apartments.

When choosing a USB adapter, pay attention to:

  • Standard: Wi-Fi 5 (802.11ac) or Wi-Fi 6 (802.11ax).
  • Frequencies: support 2.4 GHz And 5 GHz.
  • Antennas: External antennas provide a better signal than built-in ones.
⚠️ Attention: On laptops with ports USB 2.0 The speed of the USB Wi-Fi adapter will be limited to ~300 Mbps, even if it supports Wi-Fi 6. For full speed you need USB 3.0 (blue port).

6. Optimize Windows Settings for Wi-Fi

Windows by default tries to save energy, which can reduce the performance of the Wi-Fi adapter. Here's what you can change:

  1. Disable power saving for the Wi-Fi adapter:
    1. Open Device Manager → Network adapters.
    2. Right click on the adapter → Properties → tab Power management.
    3. Uncheck Allow this device to turn off to save power.
  2. Change the power plan:
    1. Open Control Panel → Power Options.
    2. Choose a plan High performance.
    3. Click Set up power plan → Change advanced settings.
    4. Find Wireless adapter settings → Power saving mode and install Maximum performance.
  3. Disable TCP/IP autoconfiguration: 
    netsh int tcp set global autotuninglevel=restricted

    (enter this command in Command line on behalf of the administrator).

It's also worth checking to see if the speed limit is Windows firewall or antivirus. Disable them temporarily and check if the speed has changed.

💡

Setting the power plan to "High Performance" can increase Wi-Fi speeds by 10-20%, especially on laptops with adapters Intel And Qualcomm.

7. Check your security and DNS settings

Incorrect security settings or DNS servers may slow down your connection. Here's what to do:

  • 🔐 Change the encryption type: in the router settings select WPA2-AES or WPA3 instead of WPA-TKIP or WEP (they are outdated and slower).
  • 🌍 Use fast DNS: instead of DNS provider, specify 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google). How to change:
    1. Open Control Panel → Network and Sharing Center → Change adapter settings.
    2. Right click on your Wi-Fi connection → Properties → IP version 4 (TCP/IPv4) → Properties.
    3. Check the box Use the following DNS server addresses and enter 1.1.1.1 And 1.0.0.1.
  • 🚫 Disable IPv6 (if not used): in the same IPv4 settings, uncheck IP version 6.

    • If after changing the DNS the speed has not changed, return the settings back - the provider may be blocking third-party DNS.

    8. Advanced methods: replacing the adapter and flashing the router firmware

    If none of the above helps, radical measures remain:

    • 🔧 Replacing the built-in Wi-Fi adapter: in most laptops the adapter is removable (format M.2 2230 or NGFF). You can install a more modern one, for example:
      • Intel Wi-Fi 6 AX200 (supports Wi-Fi 6, speed up to 2.4 Gbit/s).
      • Qualcomm Atheros QCA6174 (good compatibility with Linux).
      ⚠️ Attention: Before replacing, check whether your laptop supports the new adapter (look for information on the model on forums, for example, NotebookCheck).
    • 📥 Flashing alternative firmware to the router: for example, DD-WRT or OpenWRT. This gives access to advanced settings (for example, increasing the transmit power to 200 mW). But be careful - the wrong firmware can “brick” the router.

    It is better to entrust the replacement of the adapter to a service center if you do not have experience working with laptops. The cost of work is from 500 to 1500 rubles.

    How to find out the model of the Wi-Fi adapter in a laptop?

    Open Device Manager → Network adapters and look at the title.

    Or enter in Command line:

    wmic nic get name, manufacturer

    This will list all network devices with manufacturers.

    FAQ: Frequently asked questions about Wi-Fi on a laptop

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

    There are several reasons:

    • The laptop may have an outdated Wi-Fi adapter (for example, 802.11n instead of 802.11ac on the phone).
    • Windows limits the adapter's power consumption by default (see Section 6).
    • The phone connects to the network 5 GHz, and the laptop - to 2.4 GHz (check your router settings).
    📶 Which Wi-Fi channel should I choose for maximum speed?

    For range 2.4 GHz in Russia channels 1–13 are available. Optimal:

    • Channels 1, 6, 11 - do not interfere with others.
    • Use the utility Wi-Fi Analyzerto see how busy the channels are.
    • In range 5 GHz choose channels with fewer numbers (for example, 36, 40, 44), since they are less busy.
    🖥️ Can a laptop be used as a Wi-Fi repeater?

    Yes, but it's inconvenient. It’s better to buy a cheap repeater (from 1000 rubles). If you still need it:

    1. Open Command line on behalf of the administrator.
    2. Enter: 
      netsh wlan set hostednetwork mode=allow ssid=MyWiFi key=12345678

      (replace MyWiFi And 12345678 to your network name and password).

    3. Start the network: 
      netsh wlan start hostednetwork
    4. Turn on Internet Sharing in Connection properties.

    Cons: The laptop must be turned on all the time, and the speed will be lower than a regular repeater.

    🔌 Why does Wi-Fi turn off when running on battery?

    This is because of energy saving. Solutions:

    • Disable the option Allow device to turn off to save power (see section 6).
    • In Power Options, select a plan High performance.
    • Update the Wi-Fi adapter driver (sometimes manufacturers fix this problem in new versions).
    🛠️ How to reset Wi-Fi settings on a laptop?

    If all else fails, reset your network settings:

    1. Open Settings → Network and Internet → Status → Network reset.
    2. Click Reset now and reboot your laptop.
    3. After the reset, you will have to reconnect to all networks.

    This deletes all saved networks, VPNs and proxy settings.