Why is my laptop slower than my phone on Wi-Fi alone?: A technical breakdown.

Have you noticed that Internet speed on a laptop significantly lower than on a smartphone, even though both devices are connected to the same Wi-Fi network? This is a common problem faced by users of various laptop brands, from budget Lenovo IdeaPad to bonuses MacBook Pro. While iPhone 15 or Samsung Galaxy S23 demonstrate a stable 300-500 Mbps, the laptop barely manages 50-100 Mbps, and sometimes even freezes while loading pages.

The reasons for this behavior lie not only in hardware limitations, but also in operating system settings, drivers, and the specific operating features of Wi-Fi adapters. In this article, we'll look into these. 7 Key Factors That Affect the Speed ​​Difference Between a Laptop and a Phone, and we'll provide specific recommendations for diagnosing and fixing the problem. It's important to understand that this isn't just a matter of "bad" Wi-Fi, but a complex set of technical issues that can be fixed without purchasing new equipment.

1. Differences in Wi-Fi adapters: why smartphones outperform laptops

The main reason for uneven speed is Hardware differences between Wi-Fi modules in laptops and smartphones. Modern flagship phones (for example, Google Pixel 8 or Xiaomi 14 Pro) are equipped with the latest chips that support standards Wi-Fi 6 (802.11ax) or even Wi-Fi 6E, which provide:

• 🔹 High throughput due to the use of 160 MHz wide channels.
• 🔹 Less delays thanks to technology OFDMA (multi-user access).
• 🔹 Better performance in busy networks (for example, in apartment buildings).

At the same time, many laptops, especially budget ones or those released before 2020, use outdated adapters. Wi-Fi 5 (802.11ac) or even Wi-Fi 4 (802.11n). For example, the popular HP Pavilion 15 2019 release is often equipped with a module Intel Wireless-AC 9560, which theoretically supports speeds up to 1.7 Gbps, but in practice is limited to 80 MHz channel width and is not optimized for modern networks.

⚠️ Attention: If your laptop is older than 2018, there is a possibility of Wi-Fi 6 close to zero. Check the adapter model in Device Manager (Windows) or via command lspci | grep -i network (Linux/macOS).

2. Drivers and firmware: why updates are critical for speed

Even if your laptop is equipped with a modern adapter Wi-Fi 6, outdated or incorrectly configured drivers can reduce its performance to the level Wi-Fi 4Manufacturers regularly release updates that:

• 🛠️ Correct errors in working with new standards (for example, WPA3).
• 📶 Optimizes connections to busy networks (important for multi-apartment buildings).
• 🔧 Add support for new router features (for example, Mu-MIMO).

The problem is that Windows doesn't always automatically install the latest driver versions. For example, for adapters Intel AX200/AX210 Critical updates are released every 2-3 months, but after Windows Update They may arrive with a delay of up to six months. The same applies to laptops on Qualcomm Atheros or Realtek — their drivers often “glitch” without manual updating.

Download the latest version from the manufacturer's website (Intel, Qualcomm, Realtek) | Remove the old driver via Device Manager | Install the new driver manually | Restart the laptop and check the speed-->

To check if a driver is up to date in Windows:

1. Open device Manager (Win + X → Device Manager).
2. Expand the tab Network adapters.
3. Find your Wi-Fi module (for example, Intel Wi-Fi 6 AX200).
4. Right click → Properties → Driver.
5. Compare the version with the latest one on the manufacturer's website.

⚠️ Attention: If the speed drops even more after updating the driver, roll back to the previous version. Some "new" drivers contain bugs (especially for adapters). Realtek RTL8821CE).

3. Energy Saving Settings: Why Windows Throttles Wi-Fi

One of the most common reasons for slow Wi-Fi on Windows laptops is power saving mode, which automatically limits the adapter's performance to conserve battery life. This feature is useful for battery life, but often leads to:

• 🐢 A sharp drop in speed when running on battery power (even if the laptop is connected to the network).
• 🔄 Constant connection breaks when the signal is weak.
• ⚡ Increased ping during online games or video calls.

By default, Windows 10/11 sets a power plan for the Wi-Fi adapter "Balanced", which reduces the transmit power to 50–70% of the maximum. To fix this:

1. Open Control Panel → Power Options.
2. Select an active plan (usually "Balanced") → Setting up a power plan.
3. Click 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).

On macOS, a similar problem can be solved by resetting the settings. SMC (System Management Controller) or disabling the function Optimized Battery Charging in the energy saving settings.

4. Operating system influence: why macOS and Windows behave differently

Even on identical laptops with identical Wi-Fi adapters, the speed may vary depending on operating system. For example:

• 🍎 macOS (on MacBook) is optimized for working with networks Wi-Fi 6 and automatically selects the least loaded channel.
• 🪟 Windows often gets stuck on overloaded channels, especially if the adapter driver is outdated.
• 🐧 Linux (on Dell XPS or Framework Laptop) may require manual adjustment of parameters iwconfig for stable operation.

Key differences:

For Windows, an additional problem is created by WLAN AutoConfig service (WlanSvc), which sometimes conflicts with drivers. To restart it:

net stop WlanSvc
net start WlanSvc

How to check real Wi-Fi speed in Linux?

In the terminal, run the command iw dev wlan0 link (replace wlan0 to your interface). Pay attention to the parameters tx bitrate (transmission speed) and signal (signal level). If tx bitrate below 300 Mbps with a strong signal, the problem is in the driver or router settings.

5. Router settings: why your phone prefers 5 GHz, but your laptop doesn't

Many users do not take into account that The router can distribute Wi-Fi in two bands. — 2.4 GHz And 5 GHz, - and devices connect to them in different ways:

• 📱 Smartphones (especially flagships) prefer 5 GHz due to less interference and higher speed.
• 💻 Laptops (especially old ones) can get stuck on 2.4 GHz, if automatic range selection is not disabled in the router settings.

The problem is aggravated if:

• 🔌 The router uses wide 80 MHz channel on 2.4 GHz (this is prohibited by standards and causes interference).
• 📡 Enabled in settings 802.11b/g/n compatibility mode (limits speed to 150 Mbps).
• 🔄 Function Band Steering (automatic switching between 2.4 and 5 GHz) does not work correctly.

To check and fix:

1. Go to your router's control panel (usually 192.168.0.1 or 192.168.1.1).
2. Find the section Wi-Fi or Wireless network.
3. Make sure that for 5 GHz a channel of width is installed 80 MHz (or 160 MHz, if the router supports it).
4. Turn it off 802.11b in the settings 2.4 GHz (leave only n/ac/ax).
5. Force connect your laptop to 5 GHz, selecting a network with the suffix _5G.

⚠️ Attention: If your router is older than 2019, it may not support Wi-Fi 6 or a wide strip 160 MHzIn this case, the maximum speed for the laptop will be limited by the capabilities of the router, not the adapter.

6. Background traffic and optimization: what "steals" speed on a laptop

Unlike smartphones, laptops are often used background processes, which consume traffic and processor resources, reducing internet speed. Typical speed-hogs include:

• 🔄 Windows Updates (especially if they are downloaded in the background).
• ☁️ Cloud services (OneDrive, Google Drive, Dropbox).
• 🛡️ Antiviruses (For example, Kaspersky or ESET scan traffic in real time).
• 🎮 Streaming services (Steam, Epic Games, NVIDIA GeForce Now).

To diagnose the problem:

1. Open Task Manager (Ctrl + Shift + Esc).
2. Go to the tab Performance → Wi-Fi.
3. See which processes are consuming network resources (column "Net").
4. Sort in descending order and complete unnecessary tasks.

For continuous monitoring, you can use utilities like GlassWire or NetBalancer, which show detailed traffic statistics by application.

7. Physical interference and device placement

Even if all the settings are correct, physical obstacles may degrade the signal for a laptop more than for a phone. Reasons:

• 📶 Laptop antennas usually located at the bottom of the case and covered by the screen when in use.
• 📱 Smartphone held in hands or placed on the table, which improves reception.
• 🪑 Metal surfaces (table, laptop case) shield the signal.
• 🚪 Walls and partitions weaken 5 GHz stronger than 2.4 GHz.

Recommendations for improving the signal:

• 🔹 Move the router closer to the laptop (ideally, up to 3 meters away).
• 🔹 Raise the laptop on a stand so that the antennas are not shielded by the case.
• 🔹 Use Mesh system or repeater, if the router is far away.
• 🔹 Check if there are any sources of interference near your laptop, such as microwaves, wireless mice, or Bluetooth speakers.

⚠️ Attention: If your laptop is connected to a docking station or USB hub, try disconnecting them—sometimes they interfere with the Wi-Fi module.

FAQ: Frequently asked questions about the speed difference between a laptop and a phone

My laptop is new, but the speed is still slower than my phone. What's wrong?

Even in new laptops (for example, ASUS ZenBook or HP Spectre) can be:

• 🔹 Outdated out-of-the-box drivers (update them manually).
• 🔹 Power saving mode for Wi-Fi is enabled.
• 🔹 Suboptimal router settings (e.g. channel width 20 MHz instead of 80 MHz).

Start by checking your drivers and power settings.

How can I check which band (2.4 or 5 GHz) my laptop is connected to?

In Windows:

1. Open Command line (Win + R → cmd).
2. Enter: netsh wlan show interfaces.
3. Find the line Radio Type (Radio Type). Meaning 802.11ac or 802.11ax means 5 GHz; 802.11n - more likely, 2.4 GHz.

On macOS: Hold Option (Alt) and click on the Wi-Fi icon in the menu bar - information about the channel and standard will appear.

Will replacing the Wi-Fi adapter in my laptop help?

Yes, if:

• 🔹 Your current adapter is older than 2018 (e.g. Intel 7265 or Realtek RTL8723BE).
• 🔹 The laptop supports module replacement (check on the manufacturer's website).
• 🔹 Are you willing to spend 2,000–5,000 rubles on an adapter? Wi-Fi 6 (For example, Intel AX210).

For most users, updating drivers and configuring the router is enough, but if the laptop is used for gaming or 4K streaming, an upgrade is justified.

Why does the speed drop only in the evening?

In the evening, the network 2.4 GHz overloaded due to a large number of connected devices (neighbors watching Netflix, playing online games, etc.). Solutions:

• 🔹 Switch your laptop to 5 GHz (less busy).
• 🔹 Select a fixed channel in your router settings 5 GHz (for example, 149–165) instead Auto.
• 🔹 If the router supports Wi-Fi 6, turn on the function BSS Coloring (reduces interference).

Can a virus cause slow Wi-Fi on a laptop?

Yes, some viruses (eg. Trojan.DNSChanger or AdLoad):

• 🔹 Redirect traffic through proxy servers.
• 🔹 Load background processes (mining, DDoS attacks).
• 🔹 Changing DNS settings increases ping.

Check your laptop with Malwarebytes or Kaspersky Virus Removal Tool, if the speed dropped suddenly.