How to Increase Wi-Fi Speed ​​on Your Router: A Complete Guide

Slow Wi-Fi is one of the most annoying problems in a modern home. Pages take forever to load, videos lag, and online games turn into slideshows. The problem isn't always your ISP's plan: often, it's the router itself, which isn't utilizing its full potential. Even if you have gigabit internet, Wi-Fi distribution speed may drop by 5-10 times due to incorrect settings, interference, or outdated equipment.

In this article - 10 proven methods Speed ​​up Wi-Fi on any router, from budget ones TP-Link TL-WR841N to the flagship ASUS RT-AX88UWe'll cover both software tricks (changing channels, updating firmware) and hardware improvements (replacing antennas, placing the device correctly). We'll pay special attention to setting up the Wi-Fi 6 (802.11ax) standard—its support in modern routers can increase speed by 30-40% when configured correctly.

Not all methods are equally effective: some will provide a 5% boost, while others will see a 200% increase. We'll start with the simplest solutions that don't require deep technical knowledge and gradually move on to more advanced techniques for experienced users.

📊 What kind of router do you have?
Budget (up to 3000₽)
Average (3000-8000₽)
Premium (8000₽+)
Provider (issued by the operator)
I don't know the model

1. Check your actual internet speed

Before digging into your router settings, make sure the problem is with the router itself and not with your ISP connection. Speed ​​test will show whether your tariff meets the stated specifications.

Connect your computer to the router via cable (not via Wi-Fi!) and take the test on one of the services:

  • 🔹 Speedtest.net — the classic version with servers all over the world
  • 🔹 Fast.com — a minimalist test from Netflix (good for checking streaming video)
  • 🔹 Yandex.Internetometer - shows ping and connection stability

Compare the figures you get with your provider's tariff. If the cable speed lower by 20% or moreIf the problem is on the carrier's end, call support. If the cable speed is normal but the Wi-Fi connection is slow, read on.

⚠️ Attention: Wi-Fi speed tests often show lower results due to interference. For a more objective result, conduct measurements at different times of day (morning and evening network loads differ).

Another important parameter is - ping (server response time). If it is higher 50 msThis could indicate an overloaded router or interference in the airwaves. In this case, changing the Wi-Fi channel (more on that in the next section) may help.

2. Optimize your Wi-Fi channel and bandwidth

Routers operate on specific channels (analogous to radio frequencies), and if your channel is overloaded by neighboring networks, speed drops. This is especially true in apartment buildings: up to 20 networks can broadcast on a single channel, creating interference.

To find a free channel:

  1. Install the application on your smartphone WiFi Analyzer (Android) or NetSpot (iOS/Windows).
  2. Start scanning - the program will show the channel load in your range (2.4 GHz or 5 GHz).
  3. Select a channel with minimal load (ideally, the green zone in the graph).

Now go to your router settings (usually at 192.168.0.1 or 192.168.1.1>) and change the channel: 

Wireless → 2.4GHz/5GHz Settings → Channel

Select Manual mode and select a free channel

For the range 2.4 GHz It's better to choose channels 1, 6 or 11 - they do not intersect with each other. For 5 GHz channels will do 36-48 or 149-165 (if your router supports them).

Also check channel width (Channel Width):

  • 🔄 For 2.4 GHz put 20 MHz - a wider channel will produce more interference.
  • 🔄 For 5 GHz can be exhibited 40 MHz or 80 MHz (if the network is not overloaded).

3. Update your router firmware

A router's firmware (embedded software) affects stability and speed. Manufacturers regularly release updates that:

  • 🛠 We're fixing code errors that are causing performance drops.
  • 🚀 Add support for new standards (for example, Wi-Fi 6 for older models).
  • 🔒 Close security vulnerabilities that could slow down the network.

How to update firmware:

  1. Go to the router control panel (the address is indicated on the device sticker).
  2. Find the section System → Firmware Upgrade.
  3. Click Check for updates (Check for Updates). If there is a new version, download and install it.

For some models (eg. ASUS or Keenetic) The update occurs automatically. If your router doesn't find any updates, check the firmware version manually:

  1. Check the current version in the settings (section Status or System Information).
  2. Go to the manufacturer's website, find your model and compare versions.
  3. If new firmware is available, download it and upload it through the control panel.
⚠️ Attention: Don't turn off your router during a firmware update! This may brick the device (make it completely inoperable). If the process freezes, wait 10-15 minutes, then reboot the router using the power button. Reset.
What should I do if my Wi-Fi performance worsens after an update?

Sometimes new firmware contains bugs. In this case:

1. Roll back to the previous version (if the router supports backups).

2. Check your channel settings - the update may reset them to default values.

3. Contact the manufacturer's support team with a description of the problem (indicate the router model and firmware version).

4. Set up the Wi-Fi standard and 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). The newer the standard, the higher the potential speed, but older devices (smartphones, laptops) may not support it.

Optimal settings:

  • 📶 For the range 2.4 GHz select mode 802.11n (or 802.11b/g/n for compatibility with older devices).
  • 📶 For 5 GHz put 802.11ac (if the router supports it) or 802.11n/ac.
  • 📶 If you have a router with Wi-Fi 6 (ASUS RT-AX58U, TP-Link Archer AX6000), turn on the mode 802.11ax for maximum speed.

Where to change: 

Wireless → 2.4GHz/5GHz Settings → Mode

Also check the parameter Beamforming (Beamforming). This technology focuses the Wi-Fi signal on connected devices rather than dispersing it in all directions. It is enabled in the wireless network settings (optional). Beamforming or Explicit Beamforming).

Wi-Fi standard Max. speed (theoretical) Range Support for older devices
802.11b 11 Mbps 2.4 GHz Yes (outdated)
802.11g 54 Mbps 2.4 GHz Yes
802.11n (Wi-Fi 4) 600 Mbps 2.4/5 GHz Yes
802.11ac (Wi-Fi 5) 3.5 Gbps 5 GHz No (only modern devices)
802.11ax (Wi-Fi 6) 9.6 Gbps 2.4/5 GHz Partially

5. Optimize your router placement

Even the most powerful router will slow down if it is placed in the wrong place. 5 rules of placement for maximum coverage:

  • 📍 Center of the apartment/house. The Wi-Fi signal spreads in all directions, so the router should be located as close to the geometric center as possible.
  • 📡 At a height of 1-2 meters. Shelves, cabinets, or suspended ceilings are ideal options. Don't place the router on the floor!
  • 🚫 Away from obstacles. Walls, furniture, and household appliances (especially microwaves!) weaken the signal.
  • 🔌 Away from other electrical devices. Monitors, DECT phones, wireless speakers create interference.
  • 🌿 Avoid aquariums and plants. Water strongly absorbs Wi-Fi signal.

If your home is large or has a complex layout (many walls, floors), consider:

  • 📶 Mesh systems (TP-Link Deco, Google Nest WiFi) - several access points operating as one network.
  • 🔄 Wi-Fi repeaters (repeater) - enhance the signal in dead zones.
  • 🔌 Powerline adapters — transmit the Internet through electrical wiring.

The router is located in the center of the room|There are no large obstacles between the router and the devices|Antennas are pointed vertically (or at a 45° angle)|The router is not located near a microwave or cordless phone|Power is connected directly (not through an extension cord)-->

For multi-story buildings: If the router is on the first floor and you're using the internet on the second floor, the signal will be weak. In this case, directional antenna (For example, TP-Link TL-ANT2408CL>) or installing a second access point.

6. Disable unnecessary connections and functions

Each device connected to your network uses up some bandwidth. If you have 10 devices connected to your router at once, the speed on each one will be lower. What can be done:

  • 📱 Check the list of connected devices in the router settings (DHCP Clients List or Connected Devices).
  • 🚫 Disable unknown devices - your neighbors may have connected to your Wi-Fi.
  • 🔄 Set up bandwidth limitation (Bandwidth Control) for individual devices (for example, smart light bulbs or IP cameras).

Also disable unnecessary router features that consume resources:

  • 🔒 Guest network - If you don't use it, turn it off.
  • 📡 WPS - vulnerable quick connection function (better to use a regular password).
  • 🔄 IPv6 - If your provider does not support it, disable it.
  • 📊 Traffic statistics — Some routers keep logs that slow down operation.

Another important point is - power saving mode on connected devices. For example, Android smartphones often go into sleep mode when the screen is off and lose Wi-Fi connectivity. To avoid this: 

Android Settings → Wi-Fi → Advanced → Wi-Fi Sleep → Never

7. Change antennas or add an amplifier

If all software methods have been tried and the speed is still low, the problem may be in hardwareBudget routers often come with weak antennas with a low gain. 2-3 dBi. Their replacement with more powerful ones (for example, 5-9 dBi) can increase the range and speed.

What can be done:

  • 📡 Buy external antennas. Universal antennas with a connector are suitable for most routers. RP-SMA (For example, TP-Link TL-ANT2409A with amplification 9 dBi).
  • 🔄 Use directional antennas. If you need to strengthen the signal in one direction (for example, to a summer cottage), this will do panel antenna.
  • 📶 Install a Wi-Fi amplifier. External amplifiers (eg Alfa Network AWUS036ACH) connect to the router and increase the signal strength.

When replacing antennas, consider:

  • 🔹 The higher dBi, the narrower the radiation pattern (the signal becomes “spot-like”).
  • 🔹 For 5 GHz special antennas are needed - they are not compatible with 2.4 GHz.
  • 🔹 The router's transmission power is limited by law (in Russia - up to 100 mW For 2.4 GHz). Amplifiers above this value require registration.

For advanced users: If your router supports MIMO (multi-channel input-output), multiple antennas can be installed for parallel data transmission. For example, a router ASUS RT-AX88U has 4 antennas, which allows you to reach speeds of up to 6000 Mbps under ideal conditions.

⚠️ Attention: Installation of antennas with a gain of more than 6 dBi Unlicensed use of a radio frequency may violate regulations. In Russia, this is punishable by a fine of up to 50,000 rubles (Article 13.3 of the Code of Administrative Offenses). Before purchasing, check the website for current regulations. Roskomnadzor.

8. Check your security and DNS settings

Incorrect security settings can slow down the network. For example, an outdated encryption protocol WEP Not only is it unreliable, but it also reduces speed by 20-30%. Optimal parameters:

  • 🔒 Security type: WPA2-PSK (or WPA3-PSK, if supported).
  • 🔑 Encryption: AES (Not TKIP!).
  • 📝 Password: at least 12 characters with numbers and special characters.

Where to change: 

Wireless → Security → Security Mode

Another important parameter is - DNS serversBy default, the router uses the provider's DNS, which can be slow. Alternative DNS services speed up website loading:

  • 🌍 Google DNS: 8.8.8.8 And 8.8.4.4
  • 🌍 Cloudflare DNS: 1.1.1.1 And 1.0.0.1
  • 🌍 Yandex.DNS: 77.88.8.8 And 77.88.8.1

How to change DNS: 

Network → WAN → DNS Settings → Enter new addresses
How to check which DNS is faster?

Use the utility nslookup in the Windows command line:

1. Click Win + R, enter cmd.

2. Run the command:

nslookup ya.ru 8.8.8.8 (for Google DNS) nslookup ya.ru 1.1.1.1 (for Cloudflare)

3. Compare response times (in milliseconds).

FAQ: Frequently asked questions about increasing Wi-Fi speed

Is it possible to increase the Wi-Fi speed if I have a 100 Mbps plan, but only 50 Mbps over the air?

Yes, but the increase will be limited by your plan. If you're getting the full 100 Mbps via cable and 50 Mbps via Wi-Fi, the problem lies with your router settings or interference. Try changing the channel, updating your firmware, and disconnecting unnecessary devices. Maximum Wi-Fi speed also depends on the standard:

  • 802.11n (2.4 GHz) - up to 150 Mbit/s.
  • 802.11ac (5 GHz) - up to 867 Mbit/s.

If your router only supports 802.11n, upgrade to model c 802.11ac can increase speed by 2-3 times.

Why does my Wi-Fi speed fluctuate: sometimes 100 Mbps, sometimes 10?

Unstable speed is usually associated with:

  • 📶 Interference from neighboring networks (check the channel in WiFi Analyzer).
  • 🔋 Energy saving on the connected device (disable Wi-Fi sleep mode in the smartphone/laptop settings).
  • 🔄 Router overload (too many connected devices or heavy tasks like torrents).
  • 📡 Weak signal (check the signal level in the device settings; if below 70%, move the router closer).

The reason could also be Automatic switching between 2.4 GHz and 5 GHz. Disable this feature in the router settings (option Smart Connect or Band Steering).

Should I buy a Wi-Fi 6 router if I don't have any devices that support it?

Wi-Fi 6 (802.11ax) is backward compatible with older devices, but its benefits will only be realized with supporting gadgets (for example, iPhone 11+, Samsung Galaxy S10+). However, even without Wi-Fi 6, the new routers win due to:

  • 🔹 A more powerful processor (better handling a large number of connections).
  • 🔹 Support MU-MIMO (simultaneous work with several devices).
  • 🔹 Improved cooling (less braking under long-term load).

If your current router is older than 3-4 years, an upgrade is justified even without Wi-Fi 6 devices.

How can I check if it's my router, not my ISP, that's slowing me down?

Do three tests:

  1. Connect your computer to the router via cable and check the speed. If it matches your plan, the problem is with the Wi-Fi.
  2. Connect your computer directly to the provider's cable (bypassing the router). If the speed has increased, the router is to blame.
  3. Check the speed on another device (for example, on a smartphone). If the speed is low everywhere, the problem lies with the provider.

Also pay attention to router indicators: If the internet light is flashing irregularly or is red, this may indicate problems with the line.

Is it possible to boost Wi-Fi signal using foil or a can?

Yes, but the effect will be minimal. Foil or a metal can placed behind the antenna creates directional reflector, which slightly boosts the signal in one direction (for example, towards the sofa). However:

  • 🔹 The increase will be no more than 5-10%.
  • 🔹 The signal in other directions will weaken.
  • 🔹 For a noticeable effect, precise adjustment of the reflection angle is required.

It's better to spend time optimizing channels or purchasing an external antenna.

📖 Read also

How Wi-Fi Router Antennas Work: Design and Configuration A detailed analysis of router antenna operation principles. Types of radiation patterns, gain How to Boost Your Huawei Router's Wi-Fi Signal: 7 Ways A complete guide to boosting your Huawei router's signal. Antenna setup, channel selection, and firmware updates. How to Boost Your Wi-Fi Signal: 7 Proven Methods Learn how to boost your Wi-Fi signal at home. Learn effective router setup methods and antenna selection. Setting up the Xiaomi Mi WiFi Amplifier: A Step-by-Step Guide How to properly connect and configure the Xiaomi Mi WiFi Amplifier to boost your Wi-Fi signal? Why Wi-Fi shows 72 Mbps: Causes and solutions Is your Wi-Fi speed limited to 72 Mbps? We'll explore the causes of slow connections on TP-Link and Asus routers. How to Improve Wi-Fi at Home: 7 Steps to a Stable Signal Learn how to improve your Wi-Fi at home: setting up your router, choosing a channel, updating your firmware, and strengthening methods.