How to Increase Wi-Fi Speed ​​on Windows 10: Step-by-Step Instructions with Tables and Tests

Slow Wi-Fi on a laptop or PC with Windows 10 — a problem faced by every second user. Even with a stable plan from a provider, actual download speeds can drop by 2-5 times due to incorrect system settings, outdated drivers, or interference from neighboring networks. In this article, we'll explore 15 proven methods speed up your wireless connection, from basic (rebooting the router) to advanced (setting up QoS and change DNS).

It is important to understand that the speed via cable will always be higher than via Wi-Fi due to the physical limitations of the standards. 802.11ac/axHowever, even within a wireless connection, you can get the most out of it—sometimes it’s enough to change broadcast channel Or update your router's firmware. We'll focus on solutions that don't require new hardware but provide a noticeable speed boost.

All methods have been tested on current builds. Windows 10 22H2 and are compatible with most routers (TP-Link, ASUS, Keenetic, MikroTikIf your speed hasn't improved after trying these tips, the problem may lie with your provider's tariff or hardware limitations of your adapter.

1. Checking the current speed and diagnosing problems

Before you optimize your Wi-Fi, you need to understand where exactly is the speed lost?To do this:

1. Measure the speed through services Speedtest.net, Fast.com or Yandex InternetometerRun the test 3-4 times and take the average value.
2. Compare with the tariffIf the actual speed is more than 30% lower than the provider's stated speed, the problem may be on their end.
3. Check the speed via cableConnect your PC directly to the router via Ethernet and repeat the test. If the difference with Wi-Fi is more than 50%, the wireless network settings are to blame.

Critical indicators to pay attention to:

• 📉 Ping is above 50 ms — indicates network delays (problems with the provider or channel congestion).
• 🔄 Speed ​​fluctuations more than 20% between tests is a sign of interference from other networks.
• 🚫 Packet loss (can be checked through ping 8.8.8.8 -t V CMD) - indicates an unstable connection.

If your cable speed matches your plan's plan, but your Wi-Fi speed drops, proceed to the next sections. If the problem is also with your cable connection, call your provider or check your router settings.

2. Optimizing router settings for Windows 10

Most routers use generic default settings that are not always optimal for your needs. Windows 10Here are the key parameters to change:

2.1 Selecting the Right Channel and Bandwidth

Modern routers support two ranges:

• 📶 2.4 GHz — long range, but high congestion (lots of interference from neighboring networks).
• 🚀 5 GHz - less interference, higher speed, but worse penetration through walls.

How to choose the optimal channel:

1. Go to the router's web interface (usually 192.168.0.1 or 192.168.1.1).
2. Find the section Wireless Settings (or Wireless network).
3. For 2.4 GHz select channels 1, 6 or 11 - they do not intersect. For 5 GHz use channels 36–48 or 149–165 (depending on the country).
4. Set the channel width:
   • For 2.4 GHz — 20 MHz (more stability).
   • For 5 GHz — 40 MHz or 80 MHz (more speed, but less range).

How do I know which channels are busy?

Use programs like WiFi Analyzer (Android) or inSSIDer (Windows) They will show the load on each channel in your area.

2.2. Enabling the 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6) standard

If your router and PC Wi-Fi adapter support Wi-Fi 5 (802.11ac) or Wi-Fi 6 (802.11ax), be sure to activate these modes:

1. Find the parameter in the router settings Wireless Mode or Standard.
2. Select 802.11ac (if supported) or 802.11n/ac mixed.
3. For Wi-Fi 6 may need to be enabled OFDMA And MU-MIMO (if there are such options).

⚠️ AttentionIf your Wi-Fi network disappears after changing the Wi-Fi standard, revert the settings back. Some older adapters don't support 802.11ac.

2.3. Configuring QoS (Quality of Service)

QoS Allows you to prioritize traffic, for example, by giving more speed to video streaming or gaming. It's enabled like this:

1. In the router's web interface, find the section QoS or Traffic Control.
2. Turn on QoS and select the mode By Device (by device) or By Application (according to the application).
3. For Windows PC, set the priority to maximum.

Router parameter	Recommended value	Why is it necessary?
Beacon Interval	100	Reduces connection delays
DTIM Interval	3	Optimizes power consumption and stability
Fragmentation Threshold	2346	Reduces packet loss
RTS Threshold	2347	Increases speed on busy networks

3. Updating Wi-Fi adapter drivers

Outdated or "corrupt" drivers are one of the main reasons for slow Wi-Fi on Windows 10The system often installs generic drivers that are not optimized for your adapter.

How to update the driver correctly:

1. Find out the model of your Wi-Fi adapter:
   • Click Win + X → device Manager.
   • Expand the branch Network adapters.
   • Find the device with the words Wireless, Wi-Fi or 802.11 (For example, Intel Wi-Fi 6 AX200 or Qualcomm Atheros QCA61x4).
4. Download the latest driver from the manufacturer's website:
   • For Intel: Download Center.
   • For Qualcomm/Atheros: Official website.
   • For Realtek: Support page.

Remove the old driver via device Manager (right click → Remove device).

Install the downloaded driver and restart your PC.

If the speed has not increased after the update, try rolling back to the previous version of the driver (in Device Manager → Adapter properties → Roll back).

⚠️ Attention: Drivers from Microsoft (installed via Windows Update) often work worse than the original ones from the adapter manufacturer.

I found out the adapter model in Device Manager|

Downloaded the driver from the manufacturer's official website|

Removed the old driver before installing the new one|

Rebooted the PC after installation-->

4. Optimizing Windows 10 network settings

Windows 10 By default, it uses network settings that aren't always optimal, but you can adjust them manually. Below are the key parameters that affect Wi-Fi speed.

4.1 Disabling Bandwidth Reservation Limitation

Windows reserves up to 20% of the bandwidth for system tasks (updates, background services). This can be disabled:

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.
4. Set value 0 (zero) and apply the settings.

This setting is only available in Windows 10 Pro/Enterprise. IN Home-Group Policy Editor is missing - use Registry Editor:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched
Create a DWORD (32-bit) value named "NonBestEffortLimit" with a value of 0.

4.2. Changing TCP/IP settings

Some stack parameters TCP/IP can be optimized for increased speed:

1. Open CMD on behalf of the administrator.
2. Execute the commands one by one:

   netsh int tcp set global autotuninglevel=restricted
   netsh int tcp set global congestionprovider=ctcp
   netsh int tcp set global ecncapability=disabled

3. Restart your PC.

These commands:

• 🔧 Limit automatic TCP window tuning (autotuninglevel).
• 🚀 Enable the algorithm CTCP for better performance in high-latency networks.
• ❌ They turn it off ECN (Explicit Congestion Notification), which may conflict with some routers.

4.3. Disabling automatic DNS selection

Your provider's DNS servers are often slow. Replace them with public ones:

1. Open Control Panel → Network and Internet → Network and Sharing Center → Change adapter settings.
2. Right-click on your Wi-Fi connection → Properties.
3. Select Internet Protocol version 4 (TCP/IPv4) → Properties.
4. Set the following DNS:
   • 🌍 1.1.1.1 (Cloudflare) and 1.0.0.1.
   • 🌐 8.8.8.8 (Google) and 8.8.4.4.

5. Setting up the Wi-Fi adapter power supply

By default Windows 10 Saves energy by reducing the Wi-Fi adapter's performance. This can lead to speed drops or connection interruptions.

How to disable power saving:

1. Open device Manager (Win + X).
2. Expand Network adapters, find your Wi-Fi adapter and open it Properties.
3. Go to the tab Power management.
4. Uncheck the box Allow the computer to turn off this device to save power.
5. On the tab Additionally find parameters like:
   • 802.11n Wireless Mode → install Enabled.
   • Roaming Aggressiveness → select Medium or Highest.
   • Transmit Power → install Highest.

Also check your general power settings:

1. Open Control Panel → Power Options.
2. Select a scheme High performance.
3. Click Change plan settings → Change advanced power settings.
4. Find Wireless Network Adapter Settings → Power Saving Mode and install Maximum performance.

⚠️ AttentionOn laptops, these settings can reduce battery life by 10–15%. Use them only if connected to a 220V power source.

6. Eliminate interference and improve signal

Wi-Fi speed depends heavily on signal qualityEven if the router shows 3-4 "bars," interference from neighboring networks or household appliances can reduce speed by 2-3 times.

6.1. Optimal router placement

Follow the rules:

• 📡 Place the router in the center of the apartment, at a height of 1–1.5 m from the floor.
• 🚫 Keep away from:
  • Microwave ovens (operate at a frequency of 2.4 GHz).
  • DECT cordless phones.
  • Mirrors and metal surfaces (reflect the signal).
• 🔌 Don't hide the router in a closet or behind a TV.

6.2 Using a repeater or mesh system

If the signal is weak in some rooms, there are two solutions:

• 🔄 Wi-Fi repeater (repeater) is a cheap solution, but can reduce speed by 30-50%.
• 🌐 Mesh system (For example, TP-Link Deco or ASUS ZenWiFi) - more expensive, but provides a stable signal without losses.

When choosing a repeater, pay attention to:

• 🔗 Compatibility with your router (however, most support the standard WDS).
• 📶 Support dual band (2.4 + 5 GHz) for less speed loss.

6.3. Replacing router antennas

If your router has removable antennas, you can replace them with more powerful ones:

• 📶 5 dBi — standard for most routers.
• 🚀 7–9 dBi - amplified signal, but narrower beam pattern (better for larger rooms).
• 🔄 Omnidirectional vs. Directional: the first ones cover the entire area, the second ones focus the signal in one direction.

Example of compatible antennas:

7. Advanced settings: changing MTU and disabling IPv6

These methods are suitable for experienced users, as they require manual configuration of network parameters.

7.1. MTU (Maximum Transmission Unit) Optimization

MTU — the maximum packet size transmitted without fragmentation. An incorrect value may result in packet loss and reduced speed.

How to find the optimal one MTU:

1. Open CMD on behalf of the administrator.
2. Run the command (replace google.com to any site):

   ping google.com -f -l 1472

3. If packets are fragmented (a message appears Packet fragmentation required), decrease the number 1472 by 10 until fragmentation disappears.
4. Optimal MTU = found value + 28 (for example, if it worked 1472, That MTU = 1500).
5. Set this value in the registry:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{your-adapter-ID}
   Create a DWORD value "MTU" with a value of, for example, 1500.

7.2 Disabling IPv6 (if not used)

Protocol IPv6 may conflict with IPv4 and slow down your connection. If your provider doesn't support it, it's best to disable it:

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

7.3. Configuring traffic priority via PowerShell

You can manually set the priority for specific applications:

# Set high priority for Chrome
Set-NetQosPolicy -Name "Chrome" -AppPathNameMatchCondition "chrome.exe" -PriorityValue8021Action 6

Priorities (meaning PriorityValue8021Action):

• 0 - background.
• 3 - standard.
• 6 - high.

⚠️ Attention: Incorrect settings MTU or QoS may cause connection interruptions. Before making any changes, create a system restore point.

FAQ: Frequently asked questions about speeding up Wi-Fi on Windows 10

🔍 Why is Wi-Fi speed slower than cable?

This is normal: wireless networks have physical limitations. Even under ideal conditions. Wi-Fi 5 (802.11ac) loses up to 30–40% of speed compared to cable due to:

• Interference from other networks.
• Limitations of the standard (for example, 256-QAM vs 1024-QAM V Wi-Fi 6).
• Delays in encryption (WPA3 slower WPA2 on older devices).

If the difference is more than 50%, check your router settings and adapter drivers.

🔄 Which Wi-Fi standard is better to choose: 802.11n, ac, or ax?

Depends on your equipment:

• 802.11n (Wi-Fi 4) — up to 600 Mbps, compatible with all devices, but slower than modern standards.
• 802.11ac (Wi-Fi 5) — up to 3.5 Gbps, optimal for most users (requires a dual-band router).
• 802.11ax (Wi-Fi 6) — up to 9.6 Gbps, but a noticeable increase will only be seen in networks with multiple devices (for example, in an office).

If you have Wi-Fi 6-router and adapter, turn on 802.11axIf not, leave it. 802.11ac.

🛡️ Does encryption type (WPA2 vs WPA3) affect speed?

Yes, but only slightly:

• WPA2-AES — the fastest and most reliable option for most devices.
• WPA3 — more secure, but may be slower on older adapters (due to more complex encryption).
• WPA2-TKIP - outdated, slower AES by 20–30%.

Recommendation: Use WPA2-AES, if all your devices support it.

📡 Is it possible to speed up Wi-Fi with an external adapter?

Yes, if your built-in adapter is outdated. Examples:

• TP-Link Archer T4U (Wi-Fi 5, up to 1300 Mbps) - budget option.
• ASUS USB-AX56 (Wi-Fi 6, up to 1800 Mbps) - for modern networks.
• Intel Wi-Fi 6 AX200 (M.2, up to 2400 Mbps) - for PCs with a free slot.

The speed increase can be up to 2-3 times if the old adapter worked on 802.11n.

🔧 Why has my Wi-Fi become slower after the Windows 10 update?

Common causes:

• Microsoft installed universal driver, which is worse than the original from the manufacturer.
• Turned on background updates (turn them off in Settings → Update & Security).
• They chipped in power settings adapter (check section 5).

Solution: Roll back the driver or install it manually from the manufacturer's website.